Everything posted by Sensei
-
Could A Space Shuttle Get To The Moon?
..and so what? It's a one-way mission anyway, because of what I said earlier. It will melt down.. Oxygen can be (and is) regenerated from CO2, which is exhaled. "Half" of the Apollo 13 movie is about how to make CO2 filters. You can have CO2 to O2 converters built into the suit. An interesting option for scuba divers in emergency situations.
-
Notary frustration
Life would be too easy without bureaucracy.. and they would have to find a real job.. See? You're giving "bread" to the aviation, transportation, financial, tourism and oil and gas industries..
-
Is trying to catch something you drop (or about to) a real reflex?
What happened to a sense of humor?
-
Is trying to catch something you drop (or about to) a real reflex?
You went into Matrix-mode and used your unknown yet Neo-like features..
-
Is the Sun "lumpy" on the inside??
Is it possible to have such a map for the Sun? Not really.. It is not a solid body. Different regions of the star rotate at different speeds and/or in different directions. "Bubbles" on distant stars are often the result of an unseen second massive object nearby, which attracts them.
-
Is the Sun "lumpy" on the inside??
The difference is counted in milligals: https://en.wikipedia.org/wiki/Gal_(unit) i.e. 9.80665 m/s^2 = 980.665 cm/s^2, and the difference is in the 2nd, 3rd or 4th digit, after the fractional dot.. They are specially tweaked to see them better. In RGB pixel format, without overtweaking, the differences would be so small that you could tell they were the same color.
-
Is the Sun "lumpy" on the inside??
"When you have $1 million, you don't see a loss or gain of a cent".. Water has a density of 1 g/cm^3, while solid rock has two to three times that (or more if it contains more metals). But this is only a small "skin" on top of the Earth. The deepest ocean has a trench 11 km deep, while the Earth has a radius of 6730 km. 11/6370 = 0.17% (in mass it will be significantly worse, calculate how much using the average density of the Earth) Apparently, you haven't bothered to find out how little difference we are talking about.. Do you have any data to support that something you perceive as flat is flat? To you, it appears flat because you are big and your eyes are imprecise. Under a microscope, a flat surface is full of "mountains" and "valleys." These "mountains" are "big" for microns or nanometers.. (i.e., irrelevant to the human body counted in meters)
-
Could A Space Shuttle Get To The Moon?
Obviously: https://en.wikipedia.org/wiki/Moon,_South_Dakota ps. But I think it would be a hard landing..
-
Could A Space Shuttle Get To The Moon?
What does this have to do with escape velocity? Artificial satellites simply melt because the temperature exceeds the melting point of any known human materials.. 1370 W/m^2 reaches the orbit of the Earth. On the Moon's equator at noon it is the equivalent of 120 C. At a distance of 75 million km from the Sun it will be 5500 W/m^2. At a distance of 10 million km from the Sun it will be 308 kW/m^2. etc. etc.
-
Hamas attacks Israel with kit rockets and AK47's... US sends aircraft carrier in support.
DNA and genetic studies between the Jews and Palestinians: https://en.wikipedia.org/wiki/Origin_of_the_Palestinians#Between_the_Jews_and_Palestinians https://en.wikipedia.org/wiki/Genetic_studies_on_Jews#Levantines "Many genetic studies have demonstrated that most of the various Jewish ethnic divisions and Druze, Palestinians,[3][8][5][40] Bedouin,[8][5] Lebanese people and other Levantines cluster near one another genetically. They also found substantial genetic overlap between Israeli and Palestinian Arabs and Ashkenazi and Sephardic Jews. A small but statistically significant difference was found in the Y-chromosomal haplogroup distributions of Sephardic Jews and Palestinians, but no significant differences were found between Ashkenazi Jews and Palestinians nor between the two Jewish communities." Thus, brothers and sisters fight with their close family..
-
Hamas attacks Israel with kit rockets and AK47's... US sends aircraft carrier in support.
Slap for slap and no one remembers who slapped first, as this has been going on for centuries, millennia.. Not exactly. An aircraft carrier can be a sort of "floating military base", without having to establish a real military base on (enemy) land.. Any escalation of violence in the Middle East drives up oil prices.. "Follow the money" - some say. https://www.reuters.com/business/energy/oil-prices-jump-middle-east-violence-roils-markets-2023-10-08/ "Brent crude rose $4.18, or 4.94%, to $88.76 a barrel by 0120 GMT, while U.S. West Texas Intermediate crude was at $87.02 a barrel, up $4.23, or 5.11%."
-
Are West Europe countries are second class countries in Today's world?
So why so many immigrants? Shouldn't they choose "1st class countries" *) instead? *) maybe you should teach these immigrants..
-
Airlines And Other Private Companies Going Into The Space Industry
When you have virtually a monopoly on the market, almost nothing can throw you out of it. Your company is the market.
-
Airlines And Other Private Companies Going Into The Space Industry
Private companies have even less patient managers..
-
Quantum Computing, exercise 2.1
Shouldn't you give the angles of each polarizing filter independently, such as alpha, beta and gamma? Did you mean that A alpha = 0, then B "theta" (given by you), and then C gamma = 90? 50% of the photons will be after passing through filter A (and 50% of the photons will be reflected).
-
Airlines And Other Private Companies Going Into The Space Industry
Private business does it to make money. The government doesn't necessarily. You haven't shown what private companies are supposed to make money on in space. The business of launching and managing satellites is carried out by private companies. However, it does not require any human assistance in space. Rockets are small because they don't need to carry 90 kg of human body x number of crew + all the stuff needed to keep them alive = tons. They just need to carry a few kilogram satellite. The cost of a rocket launch is counted in millions, not billions of dollars. Asteroid mining? 1 billion dollars / 1800 usd/gold ounce = 555555 ounces * 31.1 g/ounce = 17277777.8 g / 19.3 g/cm^3 = 895221 cm^3 = 0.89 m^3 i.e. to get even for every 1 billion of launch costs they would have to find 100% gold asteroid with size near 1m^3 Finding too much of it (which is really doubtful), could destabilize the earth's stock market (just as gold from America did to Spain and Western Europe hundreds years ago). Gold mining on Earth is 4,000 tons per year. On Earth, it is easier and less risky.
-
Data Analysis with Python: Calculating Mean and Median
No, you do not work.. ...then show your not optimal code....
-
How DNA computer works?
https://en.wikipedia.org/wiki/DNA_computing
-
Why not use ZnSO4 for sulphuric acid.
..it's hard to believe that people who write "Caution: Contents Hot" on a cup of coffee have flown to the Moon..
-
Regular negative mass black holes under time transformations
A humanist would say the opposite.. When I see "a sea of words" without math, or a trace of it, I simply ignore it because it is "word salad"...
-
McCarthy out... what next?
How many votes does it take to become president of the United States? https://en.wikipedia.org/wiki/2000_United_States_presidential_election "The recount having been ended, Bush won Florida by 537 votes, a margin of 0.009%. [...]" ...You should learn from the past: https://en.wikipedia.org/wiki/Sulla
-
McCarthy out... what next?
When you do nothing, I do everything.. His constituents don't read the internet.. at least not the one that would report on it.. The well-informed, well-educated, well XYZ think they are reaching their audience, while this is not the case....
-
Fuel consumption as an area
Wind can also accelerate a thing, depending on the direction. Airplane pilots often use this knowledge to reduce fuel consumption during flight. (Taking off and landing against wind direction is another story)
-
Why not use ZnSO4 for sulphuric acid.
You learn from mistakes. Your own. Or others'. You can say "don't try it at home" to a significant amount of chemistry..
-
Why not use ZnSO4 for sulphuric acid.
Not without a reason Humphry Davy had an accident and Faraday had to replace him: https://en.wikipedia.org/wiki/Humphry_Davy#Laboratory_incident