2005年8月23日 · I am working on a school project called biosphere 3. We are creating a biosphere on mars. We have to choose what kind of people will be in the biosphere, the types …

2024年4月2日 · The LUCA has also been defined as "a hypothetical organism ancestral to all three domains".[3] The LUCA is the point or stage at which the three domains of life diverged …

2024年11月6日 · Let's say you guys are correct then Density = ∞ and Mass = 3☉, then Volume = 0, which is what special relativity says it is which is Einstein's Equation for size of space as dx' …

2007年8月17日 · This one's giving me a headache.du/dt = K*laplacian(u) inside a 3D sphere, r<a. Boundary conditions u(r=a) = 0. Initial conditions are u(t=0, 0<r<a/2) = 1, u(t=0, a/2<r<a) = 0. …

2005年7月31日 · Or sign in with one of these services. Sign in with Facebook. Sign in with Google

2024年10月24日 · Luminosity of the Sun, L⊙ = 3.8E33 erg per sec. A main sequence star with 20 times the mass of the sun has a luminosity of (20^3.5) L ⊙, about 35,000 times the luminosity …

2024年4月2日 · "Scientists think that by 4.3 billion years ago, Earth may have developed conditions suitable to support life. The oldest known fossils, however, are only 3.7 billion years …

2024年11月19日 · This is equal to a Mass Density of about 3.3474E−28 kg / cubic meter. This is estimated to be about 4% of the universe's total mass density. The equivalent Energy Density …

2009年10月25日 · we are doing an engineering project for physics and we need to make an elastic powered loonie car. the teacher didnt give us any directions at all and somehow we …

2005年11月10日 · or more accurately the first 10,000 digits are: 3. 1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 …