I believe you mean N2O. NO2 is broken down by SCR. Unfortunately, N2O can be formed as a side effect of the SCR reactions. However, N2O is regulated as a greenhouse gas.

You are correct. The ITU defined 4G, and none of the carriers followed the standard. Instead, they strong armed the ITU to change the definition of 4G to fit the technology they had already deployed. I suspect the same will happen with 5G as well.

My parents live in a neighborhood with buried power lines. Yeah, on average the power goes out less often. However, they've had a recent issue with the buried lines decaying after 30+ years underground. When that happens, it's a much longer, and more expensive repair.

The thing that bothers me is well meaning landowners planting trees near power lines. Personally, I blame schools that hand out saplings to children without proper education. Yeah, they look nice when they are small. They don't stay small.

Elon Musk really hates hydrogen as a fuel. Not just for cars, but even for rockets.

The energy cost of methane is the lowest and it has a slight Isp (specific impulse) advantage over kerosene...it does not have the pain-in-the-ass factor that hydrogen has

I know hydrogen has a high "pain-in-the-ass" factor, but are electric cars that much better?

The U.S. Navy is doing similar research creating jet fuel from sea water. This would allow aircraft carriers to stay on location longer because they wouldn't have to worry about running out of fuel for aircraft. Basically the only things that would need to be delivered would be supplies for the crew (food, toilet paper, etc.).

than what every major employer does in the United States? I know when I go to work, I have to wear and RFID badge that gets scanned when I enter the building. I also have to use it to access certain areas. The last three places I've worked had similar systems.

Take a page out of the Android playbook only instead of naming the releases after something sweet, name them after a man convicted of murdering his wife.

I believe René Descartes already asked this question. His response was ultimately, "I think, therefore I am".

Sounds like this area of physics is crossing into philosophy.

The innovation isn't in the concept of "drafting" another plane. The innovation is in the autopilot system that does it safely and automatically. As shown on Mythbusters the concept is viable, but a human is not capable of keeping the plane in the "sweet spot" safely for an extended period of time.

I'm seeing a lot of posts stating something like, "any idiot should know not to dump on your land" etc. However, in many states, under law, you have to post signage or build a fence to notify others of your property boundary. You may be able to prosecute without these things, but it will make your life easier if you clearly mark your property boundary. This usually corresponds to hunting regulation, but in this case I imagine it applies to dumping.

I'm not aware of any States require a fence (although it is a good idea), some require a paint mark, or some signage. I'm not a lawyer, look up the law in your own area.

That's why you charge $50,000 for 150 tickets!

You have that stuff on the people too. Make sure you have some sort of buffer between the plant floor and the server room to clean yourself off. Like a mud room, but not as OCD as a full cleanroom. You don't want to bring metal shavings in with you if possible. It may be something as simple as making sure you have to pass through an office before you get to the server room.

Also, a lot of people are mentioning HVAC. It might be a good idea to have a slightly higher (1psi) air pressure in the server room than the rest of the plant. This way contaminants will tend to flow away from the server room, instead of towards it.

This is why I subscribe to Consumer Reports. They do all of this testing for me so I don't have to do it myself.

I've had excellent results with EcoSmart soft white bulbs (sold only at Home Depot). If you time it right you can get them for $1 for 4 bulbs in my area. That's cheaper than the old fashioned incandescent bulbs! Honestly, as long as I don't have them on a dimmer, I can't tell the difference.

Agreed, cigarettes are harmful too, but it's still legal to sell them. They just get taxed into oblivion. The same should be true for incandescent light bulbs.