Saturday, August 19, 2017

What's up with WATT, Pt I (or "What's Wrong with Tech Journalism?")

It's been a while since I covered Energous (whose ticker symbol is WATT. Other posts are here, here, here, here, here, and here). They're one of the RF based wireless charging companies, and probably the most famous for their bold claims - first claiming 12 devices at up to 10 Watts, then up to 1 Watt at 4.5 meters, while remaining safe. These numbers were so high as to raise many questions as to practicality, both with respect to physics and regulatory aspects. Still, the company stood by its claims, held an IPO, and was floated on the stock exchange. Since then it has raised millions more, and has been burning through cash at the rate of around $15 million per quarter, while repeatedly delaying products and releases in what some call a 'time to carrot' manner.

To me, it was yet another example of the inability of the tech press to truly and effectively evaluate an advanced technology, and repeatedly fail to ask even the most simple and obvious questions such as "What's the efficiency?". David Pogue was one such reporter - in 2015 he sat down with the company CEO and was shown a demo of a charge light activating on a phone, while the CEO told him of how amazing it was and the reported gushed about how it was the most amazing demo ever. No, it's not the uBeam demo from a few months ago despite the similarities - two years on and still the press can't learn. Pogue finishes his 2015 article with this statement:

But I’ve seen it first-hand, and I’m convinced: This technology is real.

Wow, that's awesome, a tech journalist has fully evaluated a piece of complex technology without even cracking the case, speaking to the engineers, or the benefit of a decade or two of experience in the field. I want to believe so let's pour millions more dollars in!

Yes, that's all funny. Except millions of dollars more were poured in, thanks in part to glowing coverage like Pogue's. Fortunately, Pogue at least thought to go back a couple of years later and take a look at Energous, and published an article last month where he talks to Energous again with a slightly more skeptical eye. I say slightly more skeptical because he still allows himself to be bamboozled by the company and still fails to ask the basic questions he should - it's frustrating as 5 minutes with a decent engineer would give him exactly what he needs to ask. Let's take a few of these failings in turn:

Consumer Product Logistics
First of all he asks why they haven't shipped the product when it's near a year after the original claim. Or wait, spend 10 minutes searching and find that in 2014 the delivery date was 2015, so it's now two years behind and the delivery is constantly moving out, around 18 months ahead. The excuse is they have gone from one to three products (near, mid, far range) and that has shifted the timeframe, but that products will be for sale late Q3/early Q4 this year. That means about three months from when that interview was given, and they're not certain when a consumer device will be in the shops.

Let me be clear about this - consumer devices that are going to be for sale are ready many, many, months prior to launch. The supply chain issues to get them out mean that, unless you are selling tiny quantities, you're ready >6 months prior. Basically - if you don't know exactly how many of your devices will be on the shelves, on exactly what dates, in exactly what location, you're likely at least 6 months out, more likely a year. A few simple questions like "How many devices will be on the shelves?", "Who are the major retailers committed to stocking them?". "What is your MSRP?", "What are your projected sales volumes?", and "Can I see the retail packaging?" and it should become really clear, really quickly that the company actually has something, or is just selling vaporware.

These questions are so simple, so generic, yet an experienced journalist doesn't know to ask them.

Regulatory
Next they discuss the FCC and regulation, and Energous make it clear that they've been working to create a new testing protocol with the FCC. Awesome. So: 

Who were you working with at the FCC? Can I call them? 

or

The FCC is a public agency and they're only working with one vendor to create a standard that will apply to an entire industry? Is that normal? Let's ask the FCC that too.

Were the FCC called? Anyone there prepared to make comment? What about someone expert in getting FCC regulatory compliance for consumer products to evaluate that statement? (uBeam also made a statement about being universal standard, then withdrew it after scrutiny)

Then the company claims that they can do this with the FCC since the spot size they focus to is 'tiny', localized just as it would be on a charging pad. Fantastic. So:

What's the spot size, in centimeters? What is 'tiny'?

or

You're working at 5.8GHz and so are looking at a multi-centimeter wavelength and an array of emitters only a few elements in size. Even under ideal conditions it's hard to focus, how do you make it "tiny"?

or even


As you can guess, there was no follow up, the tech journalist once again simply accepted the statements of the company at face value and failed to question them. Ridiculously simple questions too. My first post on Energous covers the spot size question and explains it in detail - maybe ask them why those numbers or physics are wrong? It's like the recent coverage of uBeam when the company said they'd have safety evaluated by third party experts and no-one asked "Who would that be? Can we talk to them?"

How hard are any of these questions? And if they don't answer, or dodge, you know something is up. But that would be uncomfortable, and would put access as a tame journalist at-risk, so best not to.

The Charging Pad
Next, they look at the Watt-Up Mini, the charging pad that Energous claim is their first product that has FCC approval - I've pointed out before, it has FCC approval because it puts out so little power it's of no practical use at all. Energous are at pains to point out advantages such as charging the devices at any angle, or compatibility with future long range Energous products, but once again there's no follow up with questions like:

Who are your major competitors to this charging pad? How does the Mini compare to them in charge rate, efficiency, and cost?

If it's a major revenue possibility for them, and they diverted from their core mission because it was so compelling, they should have a clear business justification. It's a simple question. How can you not ask this?!?!?

The Big Devices
Then we get to the full scale medium and large transmitters, and here's where the really interesting part happens. Remember the claims of 15 feet and multiple Watts? Gone, replaced by a 'very, very small amount of power', '15 feet from the transmitter, that’d be hard for us to increase the battery. We’d just keep it from going down.' and  'It’s not charging super fast, like you would be plugged in the wall, but a small amount of energy, trickle charging it.' Just like uBeam in their recent demo, they've suddenly gone from claiming huge charge rates like 'faster than a wire' down to 'trickle charge'.

Let me put this into an analogy the non-technical people can understand. Ever met some guy who boasts he can bench-press 1100 lbs and run the 100 meters in 9.5 seconds, and you know he's full-of-shit because those numbers are just beyond the world-records (1075 lbs and 9.58 seconds) and it would be amazing if he could do one of them? And then when you finally, finally, get him to the gym and track and find he can maybe do 150lbs and then falls over wheezing at 50 meters then staggers over the line in 30 seconds? That's what's happening here - yet everyone claps their hands in the tech example about their amazing progress rather than calling him out for being a blowhard. For anyone with a vague understanding of the situation, or physics, we're sitting wondering if we're the ones taking crazy pills.

Back to the article - it's as if these wireless power companies are all reading from the same playbook - and why not, it's not like tech journalists are going to call them on it. Here's a stunning line:

During my return visit, Energous never demonstrated its transmitters charging a phone — only low-power gadgets.

Let me be clear - a company that raised tens of millions of dollars on claims of huge range, charge rates, and short delivery times, is admitting that their original claims were greatly exaggerated and people need to scale back their expectations. More importantly, they don't show a phone being charged, about the only market that's actually worth addressing for a company with a billion dollar valuation requirement. Of course this led the journalist to ask "How this will impact the share price?", "How they could have got it so wrong?", "How are forward looking financial plans are clearly heavily impacted by the drastic reduction in sales this must imply?". Ha - no, looks like there was just a nod of the head as they took down what was told to them.

The Journalism
There was journalism in this piece though - good investigation, skepticism, and a revelation - sadly it didn't involve Energous itself, but on an internet commentator. The piece starts with the claim that a single person in the whole world was bothered by the original 2015 article - which is bizarre as there were many who questioned Energous, but that would ruin a good story. Todor Mitev appears to be a short seller - a person making money from a stock that goes down, rather than up - and has been following and commenting on Energous for some time. While the short selling does give someone an incentive to drive a price down, did the journalist even pause for a moment and say "Maybe he saw that the stock was overpriced due to the hype from journalists, is just highlighting the reality, and in this capitalistic world making some money from it too?" Apparently, a person like Todor with a financial incentive from short selling can't be trusted, but the three top execs of Energous who take home nearly $5 million a year between them from a company with no product or sizeable revenue are motivated by the angels. Yep, great job there.

There's some suspicion that Todor writes under pseudonyms on forums such as Seeking Alpha, and has been accused there of being the poster Richard X Roe. I've followed Roe's posts, which contain a lot of detailed and accurate physics, and I have had a few short exchanges with him. If his physics was wrong, then it could easily be called out, but in a similar way to how my articles on uBeam are criticized but never attacked for the maths or physics, it's his character that is questioned. Nicely done in re-iterating that line.

Final question to the author - if you asked the questions I've outlined above to Energous, would that impact your access in future, and put at risk your potential earnings as a journalist?

We're all motivated by money. All of us, it's just sometimes it's more obvious than others - but it doesn't necessarily impact the validity of what's being said. To be clear here, I have zero financial interest, long or short, in the fortunes of Energous. I don't even make money from this blog. Looks like I'm the only one with clean-hands - does this mean I get listened to more than any other player?

The Close-Up and Cop-Out
The article ends with some quite frustrating quotes. First, the CEO makes this statement:

We’re on the cusp here. We think that this will all be in the rearview mirror in the next six months or so.

So by the end of 2017 it's all going to be awesome? That's an easy one to follow up on. I'm sure we'll have a year end article doing exactly that. <cough> But it's one of the close-out lines that irritated me most of all. Our intrepid journalist writes:

I never did manage to find out exactly how realistic through-the-air charging is, how close it is to appearing in our phones and watches. I’m not sure anybody really knows.

Of course you didn't find out if it's possible, you failed to ask any serious questions, or even the easy questions. You didn't even try. The closest he gets is a quote from an MIT prof which was:

“I don’t like saying ‘never’ or ‘can’t work,'” he replied, “but I would be skeptical. My guess is that this sort of system, with phased-array antennae, might work, but it is probably not very efficient.”

which if you understand engineering speak is saying "Nope. Not going to work in any vaguely efficient or practical manner." Let me translate again to the bench-press/100 meter analogy "Yes, it's just maybe possible someone can lift that much, or run the 100 meters in that time, even one would be incredible, but two together even more unlikely. I'm just not saying "No" since maybe sometime in the next 100 years one person in a few tens of billions may be able to." 

But then he says "I'm not sure anybody really knows."

To David Pogue, the writer of this article I can say this - Really? THEN WHAT WAS THE POINT OF YOUR ARTICLE? 

You. Failed.

More than that, you failed when there are many people out there who show the ways in which what they claim can be disproved - how many did you speak to? This blog has several posts that are examples of this and refute many of the points made by Energous not with opinion but easily verifiable maths and physics.

David - I know you think you were being skeptical yet fair to Energous, but really, you just acted as a mouthpiece for them to do their PR again. This time instead of pumping up the stock early on, it's part of the slow letdown. You've been suckered. Again.

Two years ago you told us all it was real. Now you don't know. Why should we listen to you on this, other than you were chosen by Energous?

Last month on Seeking Alpha, I gave my opinion on the viability of Energous, and discussed it with an individual investor. He admitted he had no business, investing, or technical skills by which to judge the company, but it was clear he had been motivated by the publicity the company had generated, which your articles have been a small part of. Understand that your articles actually affect the finances of individuals. Your words have real consequences.

What you meant to say by "I'm not sure anybody really knows." is "It's beyond my capability to understand but rather than admitting so, I wrote the article anyway while thinking to be 'even handed'"

Tech journalism is actually important, and you turned an article about the vast overstatement of capability of a (then) $350 million market cap company, into a PR piece for them. Rather than do the hard job of asking a few basic questions that would highlight the reality of the situation, but endanger your future access, you did a 'gotcha' on an individual who uses a pseudonym and might make some cash when pointing out the realities of the technology. Easy path every time.

I get it, this stuff is actually really complex and hard to understand, beyond most people's capability - but there are some great tech journalists out there, that match skepticism with fair questioning and coverage, and manage to get the complexities explained to a lay audience. To every tech journalist out there, please, pretty please, with sugar on top - be part of the solution, not part of the problem.

Next in Part II - what's going on with Energous' share price?

Sunday, August 13, 2017

Have You EVER...

(Warning - Another post that ends up political). When I became a Permanent Resident within the United States (commonly called a 'Green Card'), among the multitude of paperwork I had to fill out form I-485 which asks a ton of questions about your home country, your parents, your kids, your spouse, your job, and then about your past actions. Most of them start with "Have you EVER" then go on to ask such questions as "worked in the United States without authorization?" or "violated the terms and conditions of your non-immigrant status?", and include some rather interesting catch-alls like "committed a crime of any kind (even if you were not arrested, cited, charged with, or tried for that crime)?" which would be likely to cover about 99% of the entire population. (Fortunately the Supreme Court ruled this year that the speeding ticket you forgot about won't get you arrested and deported). Then you get the serious crime questions like "knowingly aided and abetted... in trafficking persons for commercial sex acts or slavery?" and "engaged in money laundering?" (Not even specifically Russian money!). 

Further down there's a section that asks the following:

Have you ever been a member of a group in which you used any weapon against another person or threatened to?

and then (paraphrased)

Are you a Nazi?

Ticking 'yes' to either of those would likely see you called in for a more in-depth interview or denial of the green card. If you look here, you can see that of those people "denaturalized" as US Citizens, most of them were for being a Nazi. So given I had to do all that to get in to this country, I'm just wondering why a whole bunch of guys can get together, intimidate everyone they can (especially minority groups), claim oppression, give Nazi salutes and cry "Heil Trump", run cars into crowds of pedestrians, and generally "act like brown-shirts" and the President of the United States will not condemn them?

Staying quiet at times like this supports the aggressor. Actions like we saw this weekend were inevitable given the encouragement that's been given to them by this administration. It will only get worse if left to fester. There are Nazi-esque people in the White House* - Bannon, Gorka, Miller. They are writing policy for this country, such as immigration. By both action and inaction, this administration is encouraging this.

To those of you who voted for this travesty - was it really worth this to get that Supreme Court seat, and are you really going to continue staying quiet about things like this in the hope you get a tax cut passed?

What's the price of your soul?

We all know this is wrong. It's disgusting. It's not the best of what America can stand for. It's not what 400,000 Americans died in WWII for. When I became a citizen of this country, I confirmed I wasn't a Nazi, that I didn't join groups to threaten others. It seems immigrants are held to a higher standard than the natives, and clearly than the current President.

Nearly seven months ago this administration made it clear what it was going to do. I felt then that staying quiet was being complicit in what they intend to make this country, I'm all the more sure of these words now:

Everyone who knows right from wrong has to work together no matter what tribe we used to think we belonged to. 

We can't be divided, we have to stand up for the weakest and easiest targets, no exceptions.

Support those who stand for what's right, condemn those who promote and enable what's wrong. 

There's no hiding anymore, no more abdication of responsibility. This is where we learn who we really are. Don't disappoint your children.

*updated from the original. I changed 'literal Nazis' to 'Nazi-esque'. Partly because I did something that frustrates me and used 'literal' when it's not. Gorka, a British born naturalized US Citizen, is a member of an organization with a Nazi history, and three US Senators have requested the DHS review his immigration process in the USA due to exactly the process I outline above - that being a member of such a group is grounds for denial of entry. Miller is reported to be a friend and protege of Richard Spencer, a prominent white supremacist, and the original Travel Ban from January this year was authored by him. Both in the past have denied these claims, though they do draw a lot of support and praise from them. Bannon ran (runs) Breitbart.com, which described itself as "home of the alt-right (white supremacists)". Previously, they have been described as "white supremacist adjacent", however given that they are comfortable using the extreme right wing and neo-Nazi groups to gain populist support for their agenda, and have by their actions (like the Travel Ban, or removal of federal funding for groups that oppose white supremacists) emboldened them, I'm not inclined to give them leeway. So was that some hyperbola? Yes, but after the events of this last weekend, I'm not willing to cut any slack to anyone not running from this right now. I'd rather be wrong about this and apologize later than say nothing as it festers and grows.

Update 2: Bannon is out, we'll see if this is a real 'out' or just window dressing, several former Trump aides like Stone or Lewandowski never seem to have truly left. Gorka looks like he's next, with his Ph.D. advisor even saying he's not qualified for his job. Unfortunately people are going after Gorka's son, which should be out-of-bounds. Also, some are saying that that we should go through his immigration application with a fine toothcomb to get him removed - very much a no. Due process should protect everyone, scumbags too, as if you give that to the worst, you give it to everyone. Also, as a naturalized citizen, I do really want it to be exceptionally difficult to remove naturalized citizenship, and agree with the Supreme Court decision that ensures it is so. What should be questioned is his suitability for public office and a security clearance.

Sunday, July 30, 2017

MEMS Gyroscopes, Smartphones, and Ultrasound

This morning I was reading an article on Ars Technica (great tech website if you don't already read it) about the use of "sonic guns" to disrupt the operation of electronics and gadgets like drones. Here's a simple demonstration video of this happening.


As you can see the toy robot, which balances due to the gryoscopes in it, is quickly confused by the incident sound and ends up moving, then falling over. Why does this happen?

MEMS gyroscopes are Micro-Electrical-Mechanical Systems, essentially a very small structure that's often made by the same processes used to build computer chips, that has combined electrical and mechanical behaviors that are useful to us. In the case of a MEMS gyro, it leads to motion that creates an electrical signal which can be processed to determine rotation. These structures are small enough to be packaged into something smaller than your fingernail, and so can be fitted into compact spaces and consumer goods. Here's a video of a very simple MEMS gyro oscillating.



An image below from UC Davis MEMSLab shows how one small device can detect rotation in all three axes.


You can see that each sensing mode here has at least one "resonant frequency" at which the device naturally oscillates, which means it is very very sensitive to those frequencies. Like finding the right pitch for a glass, you can actually break them by causing them to vibrate at that frequency. Some work here, here, and here shows in more academic detail how the MEMS gyros can be rendered ineffective by ultrasound above around 100 dB. Sound is, after all, just a vibration at a particular frequency - match that sound to the resonant frequency of the gyro and it will play havoc with it.

Here's a drone showing the effect of ultrasound on its behaviour - notice that the transducers used to generate the ultrasound look like Murata devices, very similar in appearance to what uBeam look to be using in their transmitters. (I appreciate the safety precautions this researcher took!)


What this all seems to be pointing to is that high powered ultrasound in the environment can disrupt the activities of more and more of our devices such as drones - what happens if they fly through a high power ultrasound beam? Do they veer off and hit someone? And the smartphones we all use today? Those phones have multiple MEMS sensors in them, and the gyro is what allows you to play games just by tilting your phone. What happens when you direct ultrasound at levels far greater than 100 dB towards a smartphone? The manufacturers know, they spend a lot of time making sure that nothing in the phone vibrates at frequencies that disrupt their operation, but I'm not sure I've seen a study that's been made public.

Those may seem like simple examples, but there are safety considerations. What happens if a safety related system, such as positioning in a vehicle, is disrupted by high power ultrasound? Who is responsible for that? Cars and larger objects can usually shield the gyro to insulate the sound from it, but what about size and weight sensitive devices like smartphones?

If the videos above give an indication, then truly ubiquitous high power ultrasound in the environment is going to be disruptive in more ways than one. Just as well no-one is likely to try to put such loud ultrasound devices out there en-masse.

Dunkirk

Movie review: Dunkirk

Basically - go see it. Great movie. No - fantastic movie. I've found Chris Nolan to be hit or miss - always beautifully filmed, but there are often plot holes you can drive a bus through that most people seem to miss because it all looks so good, and so much is thrown at you that you're overloaded. Inception and The Prestige are the two worst examples of this (so bad I've watched them twice..) while Interstellar has ridiculously awful science it pretends to adhere to, until halfway through it shifts to a "love conquers all" mode and rapidly descends to a giant cauldron of liquid poo in which it revels. Memento gets it right, sticking with a single theme and follows it through, while the first two Batman films are just brilliant (followed by an entertaining but not-as-good third).

Nolan loves to play with time in his films - Inception with its layers and ticking clock, Interstellar with the time dilation due (and ticking clock), Memento and the forward/backward storyline. He does the same in Dunkirk, with three storylines of a week, a day, and an hour in the lives of several Dunkirk participants, all intersecting in parts as they grow closer and closer together - and all through it, a ticking clock (literally) as the soldiers desperately try to get home.

I don't often get drawn in to films, but I found myself tense throughout, and Nolan manages to bring in a lot of tension as you sit on edge waiting for the next thing to go wrong. It's an exhausting film. More though, it gets over the utter powerlessness of almost all the participants, that they're simply statistics and at some point people are going to die, no matter their skill or preparation. This isn't an Arnie action film where the hero saves the day, this is about the horrors of war and how small and insignificant each person is, but also the intense bravery of many of these men in ways that no-one ever would know.

There's a Marie-Claire contributor who has been talking about how it's just a film glorifying war for men. Yeah, this glorifies war like Trainspotting glorifies taking drugs. It's hideous from nearly 80 years away.

As we exited the film, my wife recounted some stories of her grandfather, who was at Dunkirk. She had interviewed him as part of a school project. He was a remarkable man, I met him when he was in his early 90's, and I would have guessed he was in his 60's. Born in 1912, grew up in a children's home, joined the army when 18, served until the end of WWII, started a welding business then sold it and retired at 65 - got bored and started another one at 67 and ran it until he was 89. He didn't talk about what he did in the war, he even gave all his medals to a local museum to the horror of his family, as he thought no-one would care.

As part of this interview, he described running through the streets towards the beaches at Dunkirk, with men feet away from him being shot dead, and waiting for the evacuation. He was told he was brave but he said he never felt brave, all he did was try to survive. And that, in the end, was much of the point of the film, that these men survived and then later went back to fight again, that these seemingly small acts of what they couldn't see as bravery, mattered.

It also made me think of my wife's great uncle. He was on board the Royal Oak, a British battleship sunk by the Germans at the onset of WWII. Of the ~1200 crew, 833 were killed when it was torpedoed in Scapa Flow at the naval base in Orkney - her uncle, Billy, was one of the men killed. He was 16. Like the Arizona at Pearl Harbor, this site is now a war grave, and we were allowed to scatter the ashes of Billy's sister there. She never got over the loss of her brother. Another young man who tried to do what he could and serve, yet died almost the moment it began. The film reminded me that great feats aren't required to be a hero, that simply volunteering for a role that puts you in harms way for a greater good does that.

All that, so well filmed, and perfectly acted by every one of them, especially Tom Hardy. Never overplayed, just done right.

I'm not sure I've seen a film that conveys the horror and randomness of war, along with the personal sacrifice and bravery of the men who served.

Go see it.

Mount St. Helens National Monument and the US Forest Service

I just spent yesterday at the Mount St Helens National Monument, and wanted to recommend it to anyone who passes through southern Washington or northern Oregon. Not to be missed, the US Forest Service do a great job of keeping it maintained, accessible, and making it educational.


Their budget is around $5.5 billion, which sounds a lot but there are a few things to consider - the maintain nearly 200,000,000 acres of public land (mowing my 0.1 acres of lawn is pain enough...) and nearly 400,000,000 acres of private land, manage forestry and mineral extraction, and then the most visible part to the public - keeping lands and national monuments open and available for education and recreation. That results in an estimated ~$35 billion of economic activity such as tourism. Seems a pretty good return on investment for the country.

Amazingly, half of that budget is spent fighting fires, so when you hear the calls for eliminating various agencies and reducing their budgets, remember that a lot of these agencies are a victim of their own success. Perhaps they should let a few towns burn down now and then to remind people that forest fires can be bad...

I'm only half joking there, because 20 years ago the cost of fire fighting took up 1/6th of their budget and it's been rapidly increasing since. They estimate it's going to double again in the next 30 years.

Changing climatic conditions across regions of the United States are driving increased temperatures— particularly in regions where fire has not been historically prominent. This change is causing variations and unpredictability in precipitation and is amplifying the effects and costs of wildfire. Related impacts are likely to continue to emerge in several key areas: limited water availability for fire suppression, accumulation at unprecedented levels of vegetative fuels that enable and sustain fires, changes in vegetation community composition that make them more fire prone, and an extension of the fire season to as many as 300 days in many parts of the country. These factors result in fires that increasingly exhibit extreme behavior and are more costly to manage. 

The six worst fire seasons since 1960 have all occurred since 2000. Moreover, since 2000, many western states have experienced the largest wildfires in their state’s history. 

In addition, more and more development is taking place near forests—an area referred to as the WildlandUrban Interface (WUI). Increasing densities of people and infrastructure in the WUI makes management more complex and requires more complex and requires more firefighting assets to ensure an appropriate, safe, and effective response that protects lives and property.

We're living with an administration that's trying to remove national monuments, sell off public lands to private only use, and is slashing budgets for departments like this - the FY2018 budget looks to be reduced by nearly $1 billion. The service keeps up with the firefighting - it has no choice - but this is at the cost of deferred maintenance and reducing other activities which support the land and recreation. At some point, this is going to the the US Forest Firefighting Service, and that's all. It may seem a minor thing when we're dealing with other major, immediate, crises, but the US Forest Service provides a critical function for our country, and we need to support it.

On a happier note, the trip into the Mt St Helens Monument was fun. Stop at the visitors center about 5 miles in from I-5 for the educational side, then drive up about 50 more miles to the observatory for some fantastic views of the volcano.


There are a ton of trails and other parts of the monument to access, we barely scratched the surface. Try and go if you're ever in this part of the world, and support the US Forest Service whenever you can, we all rely on them for way more than most realize.


Picking on the Little Guy

If you don't like politics, stop reading. For those who have to live in this world...

Anytime a politician or those in power target the poor, the powerless, minorities, and those who have no means of defending themselves, then take a close look because they are most likely either looking for a scapegoat or trying to deflect and distract from something else. 

No-one should be singled out based on gender, sexual orientation, religious choice, race, socio-economic class or anything similar. Any country that is diverse in its population and works to integrate, not separate, will be stronger because of it. Moreover, a country that looks after the weakest of its citizens is a society that will be just to everyone.

Authoritarian regimes get their start with scapegoats from small groups outside the mainstream. We should have zero tolerance for any such discrimination from our government. The recently tweeted 'trans ban' is exactly such an action. If someone meets the physical and mental requirements for the military, or any other role, they should not be discriminated against.

As an example you have likely already seen, I give you Kristen Beck, a transgender Navy SEAL. Kristen seems like exactly the type of warfighter we want, and wouldn't let things like 'bone spurs' get in the way of serving. Her quote sums up the entire situation perfectly:

It's a leadership issue, not a transgender issue.

America is better than this, and such divisiveness can't be allowed to stand. What is happening right now is not normal, and we can't allow it to become that way. To those who don't care about such people, let me make this pretty clear - Donald Trump doesn't care about you, or your tax cuts, or your coal mining job, or whatever you thing you can get from dealing with the devil, and one day you will be the target, no matter how white or male or Christian you are. Defend the little guy, and you're defending yourself.

Oh, and it's just the decent thing to do.



Sunday, July 2, 2017

uBeam Withdraw Claims of Wirelessly Charging TVs?

It seems someone at uBeam might read my blog, and has updated a recent posting claiming that TVs can be charged wirelessly. Their page for a recent job ad read:

uBeam is an innovation that will breed innovation. Ubiquitous wireless power will lead to a world with smaller batteries and thinner, lighter devices. With wires virtually eliminated, TVs can sit in the middle of a room cord-free and light fixtures will become “stick-on” without the need for routed power. uBeam is also a universal standard, making those bulky travel adapters a thing of the past. Imagine charging your phone, laptop or even your hearing aid virtually anywhere, without any effort. This is life powered by uBeam.

uBeam have made these claims before, such as in a panel discussion, Oct 2016, the CEO explicitly states TVs can be charged wirelessly with ultrasound, and a previous incarnation of the company website that explicitly states flat screen TV charging. The current company website still carries images showing TVs and other high power devices, so while not stated, it does seem to be implied they can be powered - hence my question as to whether it's a claim the company still stands by.

In a blog post here, I laid out the case why I believed this was near impossible/impractical due to a wide range of considerations. Well, it seems they may have accepted my carefully laid out argument, and have now changed their claims in that page:

uBeam transmits power over the air to wirelessly charge electronic devices. the company seeks to enable a world where device charging is a seamless and untethered experience. It will be the Wi-Fi of energy.

While apparently it's too difficult to do a grammar check on three sentences, it's good to see that they appear to have accepted that my argument is correct, and that it is utterly impractical to charge TVs wirelessly with ultrasound. They even noticed that it's not a universal standard and removed that statement, given the explicit ultrasound limit in most of the world would at best result in about 3 mW at a phone, enough to charge in around 3 months of it being switched off. Oh, and that standards usually have to be run through Standards Association like the IEEE and take years of input from a large committee.

This is the latest in a list of reduced deliverable or performance claims from uBeam such as 'faster than a wire' down to 'trickle charge' style rates, charging through your pocket, mass production in 2016 that never materialized, and claims of efficient and powerful transducers in 2015 that the Chair of their Technical Advisory Board apparently never saw.

Are they withdrawing their claim of wirelessly charging TVs with ultrasound, or simply saving that surprise for later? No one has stepped up to challenge my assumptions or working, and I am still happy to discuss that with anyone who cares to. As you can see, "Arguing the Point" in the manner I suggested seems to work, though I'm getting the feeling it's working better when I blog than when I worked there.

You're welcome, uBeam!