rapjr9

16 ms·

151.
by rapjr9 2y ago
I was wondering if a geostationary satellite has ever broken up before. I found a NASA list of satellites that fragmented: History of On-orbit Satellite Fragmentations, 16th Edition https://ntrs.nasa.gov/api/citations&
152.
by rapjr9 2y ago
So smaller EV batteries and less range and lower price. That seems ok to me. It's possible that advances in batteries will reduce battery weight, so replacing all the guardrails right away may not make sense. Difficult to predict ba
153.
by rapjr9 2y ago
I see the VOC sensor is used to get "CO2 equivalent". I've read that these kinds of sensors are much less accurate for CO2 and not suitable for judging room ventilation: https://www.environmental-expert.com/a
154.
by rapjr9 2y ago
https://en.wikipedia.org/wiki/List_of_unsolved_problems_in_p...
155.
by rapjr9 2y ago
The desire to dominate can take a weird turn if using your anti-gravity guns reveals them and makes it likely others will soon invent the same. There is precedent for this, say in electronic warfare or cyberwarfare. As soon as you reveal
156.
by rapjr9 2y ago
Reading the comments here my thinking has been revised. I'm no longer suggesting the elites were conspiring, at least initially, I'm suggesting the physicists were conspiring for ethical reasons. Some of them may have moved up t
157.
by rapjr9 2y ago
I'd heard the name LaRouche but I've never read his history: https://en.wikipedia.org/wiki/Lyndon_LaRouche Quite astounding, he seems to have been both woke in some ways (climate change) and fundamentally mis
158.
by rapjr9 2y ago
There are some good comments here, thanks! There has been an international component to physics research cooperation. It seems not inconceivable that physicists in many countries, meeting at paper conventions and such might have agreed an
159.
by rapjr9 2y ago
I have a pet conspiracy theory for why there has been so little progress in physics for so long. The invention of the nuclear bomb scared a lot of people, it made them scared of physics. What else might physicists turn up that could chang
160.
by rapjr9 2y ago
This seems very bad, but what will the actual long term effects of it be? Does this mean lots of important people will soon be blackmailed by China? How would we ever know? (It could explain some of the behavior of congresscritters.) Do
161.
by rapjr9 2y ago
They should also require that the subsidiaries be geographically distributed.
162.
by rapjr9 2y ago
Are there new license plate readers that also do object and face detection? Are the AI corporations starting to train their algorithms on all of reality instead of just what is online? Tesla at least has long been collecting video data th
163.
by rapjr9 2y ago
Couldn't they multiplex the sensors? Turning each on for a short time to get a sparser data collection, yet still get some data.
164.
by rapjr9 2y ago
I've been wondering about plastics in relation to injections, IV bags, and pill containers. Are plastics getting into our bodies from all these, just like they are leaching into foods? Plastics that are directly involved in putting s
165.
by rapjr9 2y ago
I did watch the video but that's not the same as a precise repeatable experiment. As you say the edge response does seem stronger which means the sensor response is not linear across its surface. I guess I'm thinking of precisio
166.
by rapjr9 2y ago
I'm imagining a small, flat robot with a skinny gripper using this sensor that can roam a floor, going under furniture, and grab anything it can find and bring it to a collection point. So it would have to deal with picking up coins l
167.
by rapjr9 2y ago
The Bikenet project mapped CO2 in a small town: https://www.cs.dartmouth.edu/~sensorlab/pubs/BikeNet-SenSys0...
168.
by rapjr9 2y ago
It almost sounds like they have accidentally created a battery with electrodes and an organic layer. A battery could exhibit some of the characteristics they measure, such as increasing voltage with temperature. The test would be to see f
169.
by rapjr9 2y ago
Two good support resources are insurance and investment. You may not be around to help your son grow up and at some point he'll have lived longer than you. Insurance, both medical and life insurance as well as long term care, could h
170.
by rapjr9 2y ago
Why don't all drive makers (both solid state and rotating) use a RAID-like structure to offer drives with any speed or reliability level that buyers want? Seems like it could be much more efficient to put RAID into the drive than to w
171.
by rapjr9 2y ago
Here are some fairly inexpensive racks, you can probably find others similar to these if you search (unfortunately "rack" is not a great keyword, so add qualifiers like "19 inch" or "relay rack" or "EIA&qu
172.
by rapjr9 2y ago
For another glimpse at the feared future of mass production and consumption watch the "Out of the Unknown" series 1 episode "The Midas Plague" from 1965: https://archive.org/details/come-buttercup-co
173.
by rapjr9 2y ago
The real story here is that pesticide use killed the kids, not the bats.
174.
by rapjr9 2y ago
The median lifespan is no longer over 80, at least not for middle age males in the US, though it is for females: https://www.ssa.gov/oact/STATS/table4c6.html It also depends a lot on what your current age is. If
175.
by rapjr9 2y ago
UV light tends to kill fungi, so it seems like they are stressing the fungus and then trying to condition the signals they get from the fungus to create a directed motion. Essentially using the fungus as a UV detector and simple form of lo
176.
by rapjr9 2y ago
I wonder if this is related to the Brazil shutdown. Anyone know what effect the Brazil shutdown is having on the country? I know in the US a lot of police and fire departments and government offices use Twitter as a public relations chann
177.
by rapjr9 2y ago
In order to replace paper, devices have to compete with paper. I keep paper and pen in every room in my house. I am not going to buy a $600 device for every room in my house. A device had better be very reliable and make offloading easy
178.
by rapjr9 2y ago
So what's the time frame for this to blow and become a huge national problem? Is it there already? Are we going to see old people sleeping on the streets everywhere? It seems incredible that this is just ignored.
179.
by rapjr9 2y ago
One obvious way it is good for health is that the fermented foods stay fresher longer so that eating them doesn't make you ill. A lot of people use them to help their microbiome recover after they've taken a course of antibiotics
180.
by rapjr9 2y ago
Right, so just make it a requirement that contract repairs have to be done in battle conditions and watch how quickly the contractors now want to allow right to repair. "Sorry, you've lost another repair person, please send two t

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