New Mars Forums

That's a one-sided and extreme opinion. Yes, the attack of October 7 was horrible. It doesn't justify genocide. Israel's reaction is disproportionate. Killing civilians in Gaza cannot be justified simply because some stupid extremists did something bad. Yes, very bad.

Never forget the video of a man speaking Russian leading Hamas terrorist through the fence on October 7. I believe that man was Wagner Group. Russia did this deliberately as a distraction from the war in Ukraine. How many people died for a distraction? And Israel further escalated by attacking Lebanon. Don't try to justify it, I won't listen. Israel's reaction has been eztreme!

The Gaza Strip was supposed to be the nation of Palestine a very long time ago. Israel has treated it as Israeli territory and occupied it for a very long time. This just perpetuates animosity.

I have reposted videos from Jake Broe on an internet group with a number of Trump supporters. My concern is propaganda and disinformation from Russia about the war in Ukraine. Jake Broe posts a YouTube video about 3 times per week covering events of the war. I post a link and a "Cole's Notes" for those who don't want to watch. Two days ago I wrote this as part of my post...

The "turkey crown" proved to be the body cavity including rib cage. No wings, no legs (drum sticks). Breasts look like they were trimmed. Looked like a juvenile turkey that was whittled down so the stuffed turkey was 6 pounds. The two of us ate less than half, but did finish the stuffing. The cat got a chunk of fresh turkey, which he really liked. He gobbled the piece of turkey breast, but threw up on the carpet. Rather than throw it out, I cleaned up the mess and put it in a bowl. I notice the cat ate everything in the bowl. So he ate his own upchuck. Cats do that. It's still better than commercial cat food.

Thawed. It's pieces held in string mesh. Looks like turkey parts, mostly a breast.
My girlfriend also got a whole rutabaga.

The future will not be exactly "Star Trek". Predictions of the future are never perfect. For one thing, once a prediction is made, people will work to avoid problems identified by that prediction. So the prediction itself changes the future. There are also positive features: Motorola said the Star Trek TOS communicator inspired their StarTak flip phone. It was a radical improvement for its time. The original Star Trek pilot "The Cage" was criticized for using a normal metal clipboard, so starting with the second pilot "Where No Man Has Gone Before", the used an electronic clipboard. It was thick, and the prop was an "Etch A Sketch" toy in a fancy frame, but it inspired modern tablets. In Star Trek TNG they introduced thin tablets and smaller hand-held tablets. Personal Digital Assistant (PDA) was inspired by the hand-held version. PDA was merged with cell phones to become the modern smartphone.

Star Trek Enterprise is a disk with flat level floors. That is not how spacecraft are built today, and using rotation to produce artificial gravity makes the ship look radically different. In fact, if you want to study real life physics, gravity is not a force, it's an effect caused by a time dilation gradient and distorted dimensions of space. Those distortions of space-time are caused by the mass of a planet. Think of it this way: if an aircraft flies a level course, gravity is consistent. Speed is distance travelled divided by time: d/t. If you increase distance travelled per unit time, that increases speed. Most people think of it that way. But what happens if you reduce time? Time dilation reduces time as you fall deeper into the gravity well. Reducing time causes speed to increase. That causes you to accelerate as you fall down. So creating artificial gravity on a ship without using rotation, requires a time dilation gradient. The only way to cause a time dilation gradient is warp drive. So "gravity plating" described in Star Trek would have to be a special application of warp technology. That requires a hell of a lot of energy. You could reduce the volume of space the artifiacal gravity works over, and potentially reduce energy required. That means something in the ceiling, with strong support beams connecting the floor generator to the ceiling generator. So artifical gravity only works between them. That still requires a special application of warp technology. Frankly, I don't see it happening any time soon. Star Trek used "artificial gravity" because it meant the ship could be built in a recording studio in Hollywood.

However, I still argue for ever continuing advancements in technology. A couple advancements we need right now: reverse aging, and artificial womb. A medical treatment to make you young again would allow individuals to remain productive members of society, part of the workforce, for much longer. We have a birth rate crisis, this is one solution. Another solution is to make housing more affordable. Many couples will not have children unless they have a home with a yard. They feel they just can't raise a family in an efficiency apartment. Speculators have driven up prices of houses. We need to drive prices down so young couples can afford a home where they can raise a family.

Faster than light communication:
Quantum entanglement works by entangling a pair of subatomic particles or photons. Once entangled certain properties must be opposite. A pair of electrons will always have opposite spin. If you alter the spin of one, the other will change it's spin instantly. There is zero time delay. It's a mathematically exact number, exactly zero time. It doesn't matter the distance, propagation delay is always exactly zero time. Even over interstellar distance. In 1930 a paper published by Albert Einstein, Dr Podolsky, and Dr Rosen known as the EPR paper (their initio) tried to disprove quantum mechanics by saying this is absurd. But other have responded by saying this is brilliant! The EPR paper was based on the assumption of the principle of non-locallity. However that principle has been proven false so quantum mechanics is consistent. Good thing since quantum mechanics is required for modern electronics to work. So now it's an engineering design to develop an instantaneous communicator. Technically instantaneous is not faster than light. Speed is distance divided by time, real distance in zero time is a division by zero error. Quantum entanglement works without anything travelling across intervening distance.

Warp drive:
Nothing can move in space faster than the speed of light. But there's a loophole. Space itself can move at any speed. Warp drive works by contracting space in front of the ship, and stretching space behind it. This moves a bubble of space forward. The ship does not move relative to the bubble of space it is embedded within. Because the ship is not moving relative to the bubble, there is no time dilation.

Miguel Alcubierre wrote his doctoral thesis in 1994. It was amazing! He reverse calculated General Relativity. His initial paper required an object the size of Jupiter in front, and another object behind of equal mass but made of an exotic type of matter called negative matter that no one has been able to prove exists. This took warp drive from completely impossible to completely impractical. That was progress. Recently Dr Sonny White has published papers of how to energy optimize physicist Alcubierre Drive to be practical. His design would require a ship the size of Skylab, and no exotic matter. We launched Skylab so this sounds a lot better. He received funding from NASA and wrote two papers, linked below. Since he received funding from DARPA and built a laboratory experiment to make a static warp bubble. It worked. The bubble was microscopic, but it's a start. The warp bubble was confirmed by a laser. The catch is a ship would require so much power that only a nuclear fusion reactor could produce that much. A fission reactor would be too big and heavy. No one has developed a working fusion reactor, so more work is needed. Meanwhile Dr White is working on warp drive, powered by electrical power mains on land.

Warp Field Mechanics 101
Warp Field Mechanics 102:Energy Optimization

No, not "injecting". The torus recirculates gas because most gas does not fuse. The de Laval nozzle is the same as the throat and exhaust bell of a rocket nozzle, but acts as a jet engine in that gas recirculated gas goes through. You start with deuterium-tritium nuclear fusion because that's easiest to ignite, but energy of fusion causes recirculated gas to increase in temperature and speed. Once temperature of shock diamonds is hot enough, it will cause deuterium-deuterium fusion. That's harder to ignite and produces less energy but byproducts are tritium and Helium-3. So the fusion reactor makes its own tritium. And its own Helium-3. Shock diamonds will also cause deuterium-tritium and deuterium-helium3 fusion. The D-T and D-3He reactions will produce most of the energy.

A mass separator will remove helium-4. So waste is pure non-radioactive normal helium. As helium is removed, deuterium will be added. It doesn't need an injector, because shock diamonds are used to achieve fusion.

Gas will start as pure deuterium with a little tritium mixed in. No oxygen, no nitrogen, other gasses. As the reactor operates it will produce more tritium as well as helium-3 and helium-4. Remove helium-4 as it operates, but there will be some.

Raptor shock diamonds:

Math:
If you double pressure absolute (pressure vs hard vacuum), then you double temperature in degrees Kelvin (degrees above absolute zero). One degree Kelvin equals one degree Celcius, but zero is moved to absolute zero. This means if we start with 300°K (26.85°C) then to achieve 15 million Kelvin requires increasing by 50,000 times. However, if we start with 1,000°K (726.85°C) then achieving the same result only requires increasing by 15,000 times. That means nozzle exit area to mach disk area must be a ratio of 15,000 to 1. Can we achieve this?

Yes, Thompson is a city. 3rd largest in this province, population 13,000. Yes, greater Winnipeg (city plus surrounding bedroom communities) has a population of 834,678 according to the 2021 census. One big city surrounded by farms and forest. The drive to Thompson is straight north at 100 km/h (62.1 mph). 8 hours by car but the bus stops every 2 hours for bathroom breaks, so 9 hours. Just north of Winnipeg are farms and small towns, but once into the Interlake (are between Lake Winnipeg and Lake Manitoba) it's forest. Two lane undivided highway, one lane each direction, with a gravel shoulder and ditch. Trees grow right up to the ditch so the highway is a cut through solid forest. First bathroom break is a town with paved roads. Second one is a gas station with restaurant and food store, surrounded by forest. Third stop is gravel with above ground fuel tanks and no building. If you have to take a leak, find a bush or something between you and the bus. But I'm in Thompson now, a mining city. Population has grown to 22,000 in the past when metal prices were high. This city does have an airport, small but does service jets and has a real terminal building. Walmart is just too cheap to fly me. It's summer, warm, but rainy today.

Waiting for the bus again. Highway bus to Thompson MB. Overnight trip. Bus departs 9:30pm, arrives 6:30am. Work starts at Walmart 8:00am. Replacing the guts of hand scanners is not exactly rocket science. Pays the bills.

This discussion is about capturing CO2 and using it as a resource. The easiest way to do that is plants: trees, grass, food crops, algae in the sea, diatoms, etc. Trees can be harvested for lumber and paper. Hemp grows faster, has lots of uses.

The US Navy studied using Mars technology. The idea was use electric power from the nuclear reactor of an aircraft carrier. Capture CO2, split water in an electrolysis tank to form hydrogen and oxygen, then combine CO2 with hydrogen to form jet fuel. This would allow producing fuel for aircraft on the ship. Obviously fuel production would happen when the reactor is not needed to power the ship's propulsion.