HN user

amoshebb

249 karma

phd candidate in electrical engineering at delft university of technology. masc university of toronto. military undergrad. e-mail amos@amoshebb.com if you think I could be a good cofounder, or just to discuss anything :)

meet.hn/city/52.0114017,4.3583900/Delft

Posts0
Comments68
View on HN
No posts found.

I could only find 4 names:

1 full prof at Vanderbilt with a real research program who has been listed as PI on a bunch of grants. "Top researcher" may be generous, but based on nothing I'd say reasonable description.

The other 3: 1 is a VU Amsterdam PhD who was on a Netherlands Government funded 24-month postdoc in Harvard who's been at VU Amsterdam since 2017. 1 is an adjunct (on leave) prof from Israel who has worked at a few german universities, most recently an Munster (doesn't qualify for the 30% rule). The last resigned over a year ago and has been contracting at a couple UK universities.

This seems less like "Top researchers leave USA" and more like "Typical Academic Bag Chasing"

They mention using an ultrasonic pulse to pop bubbles around a kidney stone.

In scuba diving, microbubbles are what many blame decompression sickness on. I wonder if it may be possible to attach some sort of ultrasonic beeper to periodically burst them somewhere safe?

Why only 45? And why water cooling?

It strikes me that building everything around room temperature or slightly chilled air is a strange choice. This is already 290K-300K or so, and now this is suggesting that things run fine at 320K or 330K?

I've wondered why we couldn't just design everything to operate around 200°C and just use free-cooling by pumping ambient air through. Why don't data centres look more like chicken barns? Do things melt? Are there more errors of some other type at high temperatures?

I tried, also all a little while ago, really found the puzzles fun to do and then tried to implement some basic radar pipeline things and found lots of just basic 'building blocks' for signal processing (i/o things, fft) were missing to the point I went back to JAX.

I'm still not manage memory on GPU the way I would like, but mojo (or, my ignorant first stab at it) did not let me exploit direct DMA type things anyway.

I’m not a business person, but they’re already at the “hundreds of thousands of servers” scale, what about the 41st data center be organizationally far more expensive than the first 40?

Are there any good low-stakes games for a regular game night?

I'd love to try to host something like a poker night, but without the sour taste of gambling. Poker has lots of great qualities: people can drop in and drop out of, pick up quickly, not require so much focus that it precludes whitty bantz or idle side conversation. Are there some modern games that fit this shape?

I read a lot about passive radars trying to leech off of opportunistic waves, and lots about actual troops preferring to play hide-and-seem with anti-radiation weapons just to use active machines.

A config that strikes me as obvious but doesn’t seem to be popular would be just bistatic where you fire your own transmitter far away from yourself?

There’s got to be a reason, but it seems like best of both worlds.

We should run electric third rail along the Mississippi. It’s already barges with tugs so a few electric tugboats mostly running during daylight hours, we could electrify most of this by just replacing a few tugboats. Make the lines high capacity enough to run along the coasts, and a fleet of tugs could be a huge dispatchable load, slow steaming could free up a lot, and going just a few kts faster would mop up a ton of what may be otherwise curtailed

I have found daily-driving Ubuntu at Delft shocking pleasant. Chrome, zotero, obsidian, zoom, and so on all work great. Outlook, teams, and the office suite, and signing pdfs are all the sharpest edges by far.

I feel if the TUs were required to dogfood this, especially if generously funded such that startups could come along and provide the same service and support, that it could be a great positive externality

The original sin was using watts not joules. Humans hear watts as “gallons” and “watt hours” as “gallons per hour” and all the rest of this confusion in every article about EVs/fast chargers/distribution/solar/everything all trace back to “X-Hours” and “X” incorrectly sounding like a rate and a count, not a count and a rate.

His website makes him look like the owner of a law firm, although I think it's just him? I'm not expecting the same number, but... california issues bigger fines for watering lawns or buying illegal fireworks. For a lawyer, a fine order of magnitude smaller than "hiring a paralegal" is less "historic" and more "cost of doing business, don't get caught"

See I guess I find broadside “impractical” dissatisfying.

Could a few cargo ships be converted into floating fly farm aircraft carriers on either coast, maybe another in the amazon, and then just use a hundred reaper drone type things to do a creeping barrage? This must be within the budget of even a modest nation state.

Some folks are posting about the regular flights over Panama, and I’ve seen talk about ending screwworm with a “gene drive”, but I also feel that it doesn’t feel necessary.

But a third option I don’t see talked about a lot: finish the job. We could drop sterile flies all over the USA and Mexico all the way into panama with 1950s tech. We have drones now, surely some inexpensive paper planes shoved out of the back of hercs could cover roughly all of south america for fairly cheap.

In nova scotia there are grants to build “community solar gardens”. A 3-6MW solar farm is built somewhere cheap and convenient and then anybody in the community can pay for so many panels and then they get that amount knocked off the light bill as if they had rooftop solar. Idea is it lets people buy solar unrelated to if they rent/own or have a good roof pitch or whatever.