New answers tagged hard-science
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What is the climate of an otherwise ocean planet with a huge landmass along the equator?
Not terribly different from that of the Earth
Climate is mainly determined by three factors: Sunlight, rotation and wind.
The farther you are from the equator, the less sun you get, and the greater ...
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Can you use plants as substitute for missing metals/elements?
No
Those are some zinc rich beans if they would work...
Your body only needs trace amounts of these elements, too much and you could die, too little and you get serious health problems (Toxicity is in ...
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Gravity-powered cannonballs for mountain dwellers
45 degrees is only good if you have no drag. With drag present, the optimal angle is lower. Reference: artillery tables based on farthest point of reach. An overview of what is in them could be read ...
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Gravity-powered cannonballs for mountain dwellers
Being gravity a conservative force, we know that the maximum velocity you can get dropping from a given height is $v=\sqrt{2gh}$.
That maximum velocity will be reduced by a part due to losses. What ...
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Gravity-powered cannonballs for mountain dwellers
Some quick googling gives a vertical terminal velocity of a rigid spherical object of ~ 70 Mph (Source ) - bearing in mind that is straight down. But that site also has a calculator, so...
Using a ...
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Accepted
How much lift would this multi-winged flying ship generate at 100 kph?
Even if you exclude turbulence issues, about 78 tons
The exact lift coefficient of the DG Flugzeugbau DG-800 is really hard to find, but I was able to find data on a number of similar wings and found ...
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What is the ideal day length for extreme weather?
Venusian Days and the Runaway Greenhouse Effect: I think the problem with the question is that there are many factors that can create extreme weather. I'm going off my memory of astronomy class so ...
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