Y
HN Search
Hacker News Search
new
|
comments
|
top
|
jobs
rapjr9
searching PlanetScale…
1.
▲
2.
▲
3.
▲
4.
▲
5.
▲
6.
▲
70 ms
·
811.
▲
by
rapjr9
5y ago
Is there less of a danger of creating earthquakes from the fracturing since it is only done once in a specific area? Fracturing 100,000 geothermal sites seems like it could possibly cause some earthquake problems. I wonder if extracting th
812.
▲
by
rapjr9
5y ago
What happens on a foggy day?
813.
▲
by
rapjr9
5y ago
This video says the problem is at the warehouses and train terminals: https://www.supplychainbrain.com/articles/33608-watch-why-ar... We may soon have the opposite problem, no goods and parts being shipped because fact
814.
▲
by
rapjr9
5y ago
A 2000W inverter generator could give a Chevy Bolt an extra 14 miles of range after 3 hours of charging. A 240V generator could shorten that time or lengthen the range but would also be larger and take up more room in the car. Carrying ga
815.
▲
by
rapjr9
5y ago
I would guess that setting up a WiFi receiver outside of anyones living space but within signal range is not illegal if you are not intercepting and decoding packets, so anyone could currently get visibility into any home with WiFi. Police,
816.
▲
by
rapjr9
5y ago
I worked in Computer Science (CS) research for 20 years. Some researchers take privacy concerns seriously, many do not and see it as out of scope or a nuisance. CS is still mostly male and hence most research is done by male grad students
817.
▲
by
rapjr9
5y ago
So that raises the question, does this have any application in Star Wars energy weapons? Seems like these magnetic channels might be useful to stabilize a long range ion beam.
818.
▲
by
rapjr9
5y ago
Turn a multi-legged robot into a vacuum cleaner. Roomba style vacuum cleaners can not deal with obstructions like cables, cords, a dropped pen, toys on the floor, a sheet of paper on the floor, etc. A Spot-like robot could recognize and w
819.
▲
by
rapjr9
5y ago
Remote workers should then charge Google for use of their homes as office space, telephone, internet connection, lighting, office supplies. Seems like that would make up the 25%. Remote workers should cost Google less overall even with no
820.
▲
by
rapjr9
5y ago
The work of Dina Katabi shows that it is possible, although she used somewhat customized hardware and antenna: https://people.csail.mit.edu/dina/ and that was the basis for the new 802.11bf standard. I believe there h
821.
▲
by
rapjr9
5y ago
I thought this was an interesting take on the situation: https://annebonnypirate.org/2021/08/17/afghanistan-the-end-o...
822.
▲
by
rapjr9
5y ago
So maybe once we can detect dark matter this experiment should be rerun somehow? Seems like dark matter/energy could essentially be an ether that was undetectable using the Michelson-Morley approach.
823.
▲
by
rapjr9
5y ago
Solar panels are still useful after "end of life". They may only output 80% of the power they used to, but that can still be of value to someone. Maybe the time when they actually need to be scrapped is more like 50-75 years, no
824.
▲
by
rapjr9
5y ago
I think it is great that someone is trying, if no one tries it will never happen.
825.
▲
by
rapjr9
5y ago
Ten years ago I bought an e-bike for $500. Sure it uses lead-acid batteries which are heavy but it works well and is still running. Costs me $80 to replace the batteries in a battery pack. What am I getting for an $1800 higher price? Do
826.
▲
by
rapjr9
5y ago
Given the speculation that Epstein was blackmailing people, I have to wonder if he was blackmailing Gates. What happened to all the evidence the FBI seized at Epstein's homes? Is the FBI doing anything with it? Does it still exist? Why
827.
▲
by
rapjr9
5y ago
But what about long covid? The numbers in this article are based on _symptomatic_ breakthroughs, not _all_ breakthroughs and do not include any measurement of how many people had lingering symptoms that showed up later. If they do not mea
828.
▲
by
rapjr9
5y ago
Google has a verbatim search, click on Tools/All Results/Verbatim, but it is no longer really verbatim. It often offers results that have only one of your keywords. DuckDuckGo seems to completely ignore any quotes I put around k
829.
▲
by
rapjr9
5y ago
You can use an app to do this as well. f.lux was the first app in this category I think and is still a great choice. I run it on a Macbook. There are similar apps for phones as well. Some phones now include built-in functionality to do
830.
▲
by
rapjr9
5y ago
So how much do batteries have to improve to make small electric energy based weapons practical? If Li-Ion could store double the energy in the same weight and volume would that change the nature of small guns? Just wondering how close we
831.
▲
by
rapjr9
5y ago
I wonder if this has wireless security applications along the lines of this paper: https://dl.acm.org/doi/pdf/10.1145/3300061.3300120 Possibly the reduced far field radiation could enhance the security, kind
832.
▲
by
rapjr9
5y ago
Given the speculation that Epstein was blackmailing people, I have to wonder if he was blackmailing Gates. What happened to all the evidence the FBI seized at Epstein's homes? Is the FBI doing anything with it? Does it still exist?
833.
▲
by
rapjr9
5y ago
Manipulated photos to make products look smaller or larger than they really are everywhere on eBay. You have to find the dimensions of the product to find out how big it really is. The use of small/large people and small/large h
834.
▲
by
rapjr9
5y ago
While you're at it maybe you could prevent ransomware by making access to one file different than access to many files? Any application that wants to access many files, especially critical ones, should require special permissions, per
835.
▲
by
rapjr9
5y ago
More specifically it could be an attempt by China to reduce its vulnerability in a cyberwar or to psy-op propaganda attacks. They see the problems the USA and other countries are having with disinformation and are reacting across the board
836.
▲
by
rapjr9
5y ago
Require special permissions for operations that affect more than N files. Would that be a possible solution? Attacks could still do some damage by targeting critical files, but then those files could also require special permissions for m
837.
▲
by
rapjr9
5y ago
Another potential explanation is China is preparing for a possible cyberwar and after seeing the USA population manipulated by social networking during elections has decided they want their population to be less vulnerable to outside manipu
838.
▲
by
rapjr9
5y ago
Biden asked both the CDC and Congress to extend the moratorium, neither did. The CDC could have extended it on the same medical basis they used before. I don't know why Congress gave up on it. Maybe Biden can act himself, who knows
839.
▲
by
rapjr9
5y ago
Plasma gasification seems like an ideal way to deal with all waste, including plastics: https://en.wikipedia.org/wiki/Plasma_gasification
840.
▲
by
rapjr9
5y ago
We can do what we want with our own money, we don't have wait for politicians to allocate it. Give directly to causes that help people. People have the money (power)! Tax yourself! Fund social programs that replace this function of po
More ›