Comments URL: https://news.ycombinator.com/item?id=48219057

Points: 5

# Comments: 0

Comments URL: https://news.ycombinator.com/item?id=48190495

Points: 13

# Comments: 1

Comments URL: https://news.ycombinator.com/item?id=48173731

Points: 5

# Comments: 0

As for my comment: I really don't think I was glorifying violence or calling for violence for specific persons as both Thomas and Tom seem to be implying (and both of them have known me through my comments for more than a decade so I'm a bit surprised by them jumping to conclusions so badly).

I just answered a question and later followed it up with a longer explanation, we get taught about the French revolution and what led up to it in history class here and that is the - to me obvious - context. Tom has my email address, we've exchanged plenty of email over the years. If he was unclear about my intentions he could have simply checked up or asked in the thread but he choose to interpret the comment in the worst way possible and immediately acted accordingly. Which - ironically - is itself against the spirit of HN.

But I recognize this is his - and Dan's - website, that being a moderator is stressful at the best of times and that these are not the best of times and that they get to make the rules and call the shots, and all of us have to abide by their interpretation of those rules.

Just stand on the other side of a drywall and see how well high pitched normally audible sounds get through vs the much lower frequency sounds. It sounds decidedly muffled because all the high has been absorbed.

Ultrasonic is DOA, sorry, but that just won't do. It's already a nuisance to have all these switching supplies that mess up your hearing (and some can be surprisingly loud), using it for power delivery is really a non-starter.

There was a company that planned on using ultrasonic for power delivery to smart phones, every engineer with some ultrasonic experience said it wasn't going to work and they just kept going until they - predictably - went out of business.

https://en.wikipedia.org/wiki/SonicEnergy (formerly Ubeam).

Just wishing it exists does not mean it is possible or practical, that's right up there with Theranos (and I think Theranos actually had a better chance of working even though that chance was extremely slim).

There are interesting start-ups around the theme of energy scavenging though, that's a far more realistic but still extremely challenging proposition.