aj7

6 ms·

1.
by aj7 3mo ago
He was proof that the position is a figurehead.
2.
by aj7 3mo ago
I like the system. Every single time I talked to the human, and explained that the Times wasn’t worth the “regular” price, back came a much lower one.
3.
by aj7 3mo ago
“It made me feel powerless.” Your problem. Read some of Michael Porter’s books on competition. In an economic interaction, all players compete with each other. The Times thinks it’s in its interest to try to brainwash you with some garba
4.
by aj7 4mo ago
It took Apple 42 years to kill the pc, but they did it.
5.
by aj7 4mo ago
The late Harold DuBose use to use the 555 as a power inverter as it could sink 200ma at the laser companies he worked for. Convenient and cheap.
6.
by aj7 5mo ago
I should add that analytical device applications of this technology look almost limitless, being able to simplify, shrink, and cheapen thousands of optical instrumentation types. This is a huge market, and will lead to better healthcare, p
7.
by aj7 5mo ago
Just want to remind people that the deBroglie wavelength of light IS its wavelength, here 0.5-1.5 um. This is gigantic compared to that of electrons in semiconductors. So there is no VLSI for optical computation. None. Zero. Bupkis. Lase
8.
by aj7 5mo ago
The problem is right in the prologue. “Every piece of evidence we have for objective reality is itself a subjective experience.” But people do independent experiments. And the results agree. That’s a much stronger statement.
9.
Iran Targets Datacenters(substack.com)
3 points by aj7 6mo ago|1 comments
10.
by aj7 6mo ago
Iran recites a carefully curated list of American and Gulf States technology targets. 500,000 Nvidia GPU’s are one implicit bullseye.
11.
by aj7 6mo ago
I wonder if it is a PhD thesis to prove that the data prefiltering doesn’t bias the results.
12.
by aj7 8mo ago
The late Harold DuBose of Spectra-Physics, repeatedly used 555's as power inverters in the electronic design of a frequency stabilized ring dye laser. He liked the strength of the output transistor.
13.
by aj7 8mo ago
What would be most interesting is using optical illusions to help decode how brain visual processing is done.
14.
by aj7 8mo ago
In Israel, virtually every Christian relic is fake. Some are hundreds of years old, but nevertheless fake. This is not a comment on Christianity as a religion. Religions need relics, and if they can’t find them, they are created. This i
15.
by aj7 8mo ago
All good advice above. I’ve tapped 1000’s of holes and haven’t broken a tap in 50 years, and I have nothing to add to the above. Berkeley Physics Dept. student machine shop training.
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by aj7 8mo ago
And in a similar vein, you can’t learn much about investing without actually risking some capital.
17.
by aj7 8mo ago
Try buying a compact Toyota pickup without the extra row of seats. The last one was made in 2015. They sell for more than the price of new for mileage < 100k.
18.
by aj7 8mo ago
I’m an optomechanical engineer and I’m sorry. I’m not impressed. In a Michelson, the single most important requirement is that the optical path lengths of the two arms do not drift with respect to each other, either in length or angle. Ha
19.
by aj7 9mo ago
Look up “beam expanding telescope.”
20.
by aj7 9mo ago
I have found that my best designs, few and far between, enter a period where they get simpler as they are completed. And my worst or failed designs keep getting more complex as I go on.
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by aj7 9mo ago
I did my calculus homework on the subway.
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by aj7 9mo ago
Arrays that actually make sense!
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by aj7 9mo ago
Isn’t that an AWS outage?
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by aj7 9mo ago
Notice that this makes great sense macroeconomically. So you are warned: you will get the healthcare you demand, in addition to that which you pay for. And a certain amount of gaming of the healthcare system is always required. One further
25.
by aj7 9mo ago
This is a hugely important point. The de Broglie wavelength of the photon is hundreds to thousands of nm. There is no possibility of VLSI scale-up, a point conveniently omitted in hundreds of decks and at least $1B in investment. Photonic t
26.
by aj7 10mo ago
TI App Notes and their design app, LT Spice, and the late Bob Pease are your friends
27.
by aj7 1y ago
I use a variation of this. I answer but do not speak. A legitimate caller will speak immediately.
28.
by aj7 1y ago
I remember identical assertions about the pc. If you want to understand business trends, ask an accountant. In 7-10 years.
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by aj7 1y ago
OK. As a warmup exercise, make metals at the top of Everest. Then we’ll talk.
30.
by aj7 1y ago
Just what was going through my head when I made the comment.

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