rapjr9

34 ms·

361.
by rapjr9 3y ago
This seems brilliant, I could see most ICE cars having one of these within five years. Likely needs some work, particularly with regards to safety and to adapt it to all the specific models of cars. Could possibly be improved to add regen
362.
by rapjr9 3y ago
Dina Katabe at MIT is a leader in this area: https://people.csail.mit.edu/dina/ She's been able to get heart rate, breathing rate, location, and lots more from WiFi signals: https://www.youtube.com&#x2F
363.
by rapjr9 3y ago
So the question on my mind as a rural resident of the US North is, is this going to happen to the US North soon? Are we in the same boat as Canada in terms of drying forests and undergrowth accumulation?
364.
by rapjr9 3y ago
I've read speculation that the warm ocean temperatures are due to ships at sea stopping use of high sulfur fuel recently, so perhaps releasing some sulfur (or other reflector of IR radiation) at a fairly large scale ahead of a hurrican
365.
by rapjr9 3y ago
Most of the previous projects have failed, previous wasted money was $1.1B: https://gizmodo.com/the-energy-department-blew-1-1-billion-o... https://thebulletin.org/2022/09/plagued-by-failures-carbo
366.
by rapjr9 3y ago
Take a look at how well India's biometric Aadhaar program is doing: https://en.wikipedia.org/wiki/Aadhaar#Impediments_and_other_...
367.
by rapjr9 3y ago
Another approach I've seen actually used in Computer Science and Physics is to make replication a part of teaching to undergrads and masters candidates. The students learn how to do the science, and they get a paper out of replicating
368.
by rapjr9 3y ago
What does eradicating mosquitoes have to do with hurricanes? We've already messed with the level of sulfur in the air over the oceans by using high sulfur fuel in ships in the past, so the risks should be pretty well quantified. Poss
369.
by rapjr9 3y ago
That sounds rough, that you'd prefer the destruction of hurricanes in order to get more water. Don't the hurricanes destroy the crops? Maybe your government should try cloud seeding.
370.
by rapjr9 3y ago
I'm not suggesting injecting sulfur across the whole Earth, just near hurricanes. We also now have a natural experiment, where the sulfur from ships at sea was decreased and we have observed a significant effect and can correlate that
371.
by rapjr9 3y ago
So the article says sulfur from ships at sea plus a lack of Saharan dust is contributing to Atlantic warming. This article says Saharan dust can sap hurricanes of energy by blocking light: https://news.yahoo.com/saharan-dus
372.
by rapjr9 3y ago
I worked for a while in the military industrial complex. The only legal outlets for modifying your reality were alcohol and sex. So there were lots of people who drank heavily and swapped wives. They were quite open about it, because kee
373.
by rapjr9 3y ago
Yes, it would be nice if the Powerwall 3 had LiFePO4 batteries. I believe Tesla does not accept liability if a Powerwall burns your house down, so something without Li-Ion batteries would be better.
374.
by rapjr9 3y ago
I think the question would be, what happens at the edge of the universe? If the universe is finite, though expanding, then the waves can not be infinite unless they reflect at the edge, although one definition of the size of the universe m
375.
by rapjr9 3y ago
I wonder if the recent news about the background gravitational hum of the universe has any bearing on this: https://www.sciencealert.com/breaking-news-physicists-have-d... It essentially means that gravity is always in flux
376.
by rapjr9 3y ago
From the article: "Unfortunately, however, these people have enough money to do serious damage." Having money does not make anyone fit to change anything outside their business. Maybe there need to be limits set on what can be do
377.
by rapjr9 3y ago
I think what they are looking for is something like a transistor, except that an EM field changes the capacitance between power handling terminals rather than the resistance. So like a FET changes the resistance between the source and drai
378.
by rapjr9 3y ago
Have you ever looked for a product and found that ALL of the brands get poor reviews? Air conditioners are kind of like that, maybe half of them get a lot of poor reviews. Somehow air conditioners have seen a race to the bottom in terms o
379.
by rapjr9 3y ago
The Midea model you linked does not supply heat, but this Midea model does seem to have a heat pump that can supply heat: https://www.amazon.com/Midea-Cooling-Inverter-Window-Conditi... But the page also says: "NOTE: h
380.
by rapjr9 3y ago
This seems to be a much more reasonable unit, 10,000 BTU, does both heating and cooling via a heat pump, and it costs $700, although there are a lot of negative reviews: https://www.amazon.com/dp/B09ZCZSSV8 $5000 is ri
381.
by rapjr9 3y ago
I'd suggest you read this article in Foreign Affairs: https://www.foreignaffairs.com/united-states/how-america-bro...
382.
by rapjr9 3y ago
I worked on the F22 program, the same things that have prevented Russian air superiority in Ukraine can prevent American air superiority. F22's and F35's are not immune to attacks from lots of cheap IR missiles. Russia has also
383.
by rapjr9 3y ago
Looks impressive and I like the vision. Will have to see how "invisible" it actually is, context is very difficult to do with current technology in a wearable. Privacy will matter also.
384.
by rapjr9 3y ago
So what else are people going to do with ChatGPT automation to annoy and waste peoples time? This particular application seems like a just cause, but this exact hack can be used in bad ways also.
385.
by rapjr9 3y ago
The current US national defense strategy says the US must be capable of fighting one major war against a near peer enemy (nominally China) and defeating them: https://thehill.com/opinion/national-security/558342-am
386.
by rapjr9 3y ago
So spying on people using GPS trackers is legal in 25 states in the US? Anyone in those states could put a GPS tracker on the car of their employers CEO or a local politician or sheriff? And anyone can spy on everyone in the US using licen
387.
by rapjr9 3y ago
This article seems to be mainly about larger air conditioning systems, whole house units or industrial ones, which is great, higher efficiency would be useful there. I'd also like to see some improvements in low cost window air condit
388.
by rapjr9 3y ago
Rebuilding all houses will take perhaps a century. It might be easier and cheaper to add insulation to existing houses, such as using spray cork: https://buyspraycork.com/ https://thermalcorksolutions.com/s
389.
by rapjr9 3y ago
Seems strange that an article on the "message of Rastafari" and how it spread makes no mention of the concept of "I and i".
390.
by rapjr9 3y ago
How to write UX Documentation for the user and for the developer is missing. Commenting code. Testing seems light also, what about record/playback testing? Code coverage testing?

More ›