Airbrush

I found these plans for AG (artificial gravity) on the ISS. Centrifuges can be quite small, what they call "on-board centrifuge," and used just for sleeping. These could be contained within a large ISS module. https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20150009516.pdf

If a "city-killer" comet comes from a direction from behind the sun, at 20 miles per second, then when it passes the sun it is aligned with the sun, won't it be hard to detect because of the brightness of the sun compared to the dimness of the comet? How much warning could we have? Maybe hours at best?

The story I heard in the news is that Trump asked this question multiple times. Did he forget the answer was "it's a bad idea," or was he trying to find different opinions on the subject of nuking a hurricane?

Life can spread only to suitable habitats. Life cannot avoid extinction, when extinction is an outside force. The dinosaurs could not avoid that asteroid. Life will evolve to adapt and survive. Humans evolved dramatically. But sharks, cockroaches, and many microbes never needed to evolve hardly at all.

Trump has many lawyers, assigned to multiple lawsuits.

That's a good question. Let's wait and see what an expert has to say. I would guess that the heat only adds to the hurricane's power, but would the blast force disrupt the storm?

Obesity costs the USA over a Trillion dollars per year. 3/4 of all Americans are either obese or over weight. The med industry is set up to treat symptoms, a band-aid approach, not eliminate causes. https://newfoodeconomy.org/obesity-costs-the-u-s-1-4-trillion-per-year/

I heard in the news the Trump asked if he could use nukes to stop hurricanes. Every time I saw it reported there was no argument against it, just scoffing at the idea like it was obviously ridiculous. I realize that much of what Trump says is ridiculous, but I'd appreciate an explanation of why it is not a good idea to nuke hurricanes. I suspected in my limited understanding of physics, that a fission bomb would irradiate vast amounts of water that would be an environmental catastrophe, and the prevailing winds would take the radioactive fallout right into the USA. But what about a fusion bomb? Would a hydrogen bomb generate as much radioactive fallout as a fission bomb? I finally heard an expert say that a nuclear explosion wouldn't do anything to weaken the hurricane. The biggest A bombs are a tiny amount of energy compared to a hurricane. Heating water only makes a storm worse, right? How would an expert explain why using a nuke on a hurricane is a BAD idea?

Dark matter HAS gravity. That doesn't mean they are the same thing.

Most people can't control their impulses. Just look around you.

What new law would I push if I were king? Tax junk foods. Much, if not most, need for medical attention stems from people eating too much of the wrong foods (salt, sugar, fat, artificial additives, and preservatives). We are just as healthy as we eat correctly. We could save trillions of dollars in health care expense. When you tax junk foods you can use the tax to subsidize healthy food. A candy bar should be expensive, and a piece of fruit should be cheep. Also fruits and veges should have better quality control. A piece of fruit should always be very sweet and tasty. That is not always true today. Also, processed or enhanced foods are too delicious. Eating should NOT be that much fun. That is the reason for much obesity in the world. Plain, simple foods are tasty enough. I'm 65 and I am careful to eat plain, simple, healthy foods. With simple foods, moderation is easier. With fancy foods, moderation is more difficult for me. With healthy foods, I am satisfied with less. I'm still able to jog 4 km almost every morning in about 25 minutes.

Certainly we must shift to alternatives to fossil fuels. But in addition, something should be done to reduce greenhouse gases that are already in the atmosphere. How long will it be until we can figure out how to use a volcano like Kilauea to block sunlight? I suggested in "Engineering" that deserts, that are not too far from the ocean, can be used for simple, solar desalination. You need huge pipes to bring huge volumes of sea water to a desert where the salt water fills thousands of artificial concrete ponds that are covered with solid clear plastic (or glass made from desert silica?) that is shaped as a convex lens to magnify the sunlight to heat the salt water and the condensation is collected. This is totally sun powered. Fresh water is then used to irrigate subsistence crops to grow for humans that work on the desalination farm. Excess fresh water is directly transported by hose, so no water is wasted, to an ever-increasing forest of trees that capture co2. These oases can spring up like weeds, all over the world in any desert near the ocean, and they grow in size over time.

In the US there are thousands of migrants from Central America coming to the US. I would assume they are looking for work, though I never hear that mentioned. They are passing through vast deserts to get to the US. Would they be interested in working on a desert solar desalination farm, especially if they knew they were helping to save the world? Saving the world is a job most people would be proud of.

That sounds like a good idea. Just pump huge quantities of sea water to an inland desert where it fills miles and miles of desalination ponds. The ponds could be covered with clear plastic that has a lensing effect that magnifies the sunlight. The water is used to create an oasis and humans can live there too. Then more ponds are built, and more and more trees are planted over time in deserts. The trees capture CO2. And sell the salt!

Will it be possible to induce a volcano to erupt in such a manner that it is manageable and it dumps ash into the atmosphere, and this ash could slow down global warming? Think of a volcano like Kilauea in Hawaii that erupts continuously and the prevailing winds carry the ash away from the islands. Maybe if they throw some substances into the volcano it will be more effective at blocking sunlight?

Does this mean that before the force of gravity appeared (froze out), the big bang was able to expand briefly, before there was a force of gravity? As soon as gravity appeared, then the expansion began to slow down?

How about digging a shallow canal near the ocean and allowing the salt water to flow inland where it can be desalinated in controlled conditions? Then bury the excess salt?

Some members are flexible and others are rigid. Separate the modules using poles forming tetrahedrons, with flexible connectors, to keep all canoes distributed evenly, but allowing them a little latitude of motion. Right, some mooring is appropriate. Most of the time I don't think the modules will be vibrating. When you are in a boat on the water, you don't feel vibration. If the condensation is channeled down a steep slope, any vibration or other motion would speed up the flow of water down to a collector. What are some problems that trig would reveal? This is very interesting. What is a "good solar distiller" that could produce about a gallon per day per square meter? What if the water is heated very hot by the sun, plus you can input more power to heat the water from other means of energy generation, such as wind mills, solar cells, or flexers? The hotter you can make the water, the faster the desalination.

It is flexible and the canoes are connected in a giant net or web. Straps keep them from collecting together. They can also be anchored to the sea bottom in places. Vibration won't matter, only problem is big waves tip them at extreme angles, but when weather gets rough, the net of tubes running from the canoes shut down and go into survival mode. They are very tough plastic with clear plastic top for sun light.

Are you saying that the big-bang region of the universe (because we know nothing about the region beyond our visual horizon) may have existed for an infinite time in a strange state before changing at the moment the big bang began expanding?

Not all food is medicine. Some is poison, and other not helpful. Not all "foods" are good fuel or even have medicinal properties (e.g. sugar, salt, fat). In fact, if life eats the wrong food that life may either die or be weakened. That will interfere with life's ability to continue to live. How many of us are life that is weakened? Which brings us back to my signature, "Tax Junk Foods."

This is a model of a big bang that had no beginning? The scientific language and math intimidate me. It is above my level of understanding, so could you summarize it for us please?

No because these are modules that flex with the ocean waves. As they flex they can generate power to assist the fleet of desalination modules. They could cover square miles, off shore, for all I know (in my limited structural and logistical knowledge.) If they get damaged in a storm the damaged modules can be easily replaced.

You can create your own desalination pit in your back yard. Just put a clear plastic sheet over a kiddy pool and have the plastic deliver condensation into a central bucket. Why cannot humanity build desalination containers to float off-shore, like a fleet of a hundred (or thousand, or million) canoes covered with clear plastic. They float on the ocean allowing just enough water into the container so the sun can heat it and the condensation can flow through pipes or hoses towards shore. These containers can even be connected by "wigglers" that generate power from wave action. We could irrigate great deserts to grow trees to capture greenhouse gasses and defeat climate change.

Yes "Just try and not die," but also try to avoid injury, and eat healthy food, while you're at it. We are how we eat. Food is medicine.