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yes it would, because of the moons atmosphere, even the craters have not faded away so the footsteps would not fade away. Best type of legacy one can leave


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The energy per time ("power") in the radiation due to heat ( the infra-red "light" that you see using a night vision) scales with the temperature $T$ of a body like $T^4$


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I didn't read every word but I'll address what I believe are three of the most important parts of the patent. (1) One of the ideas for reducing radiative heat loss is reasonable In solar thermal systems, the hot object can lose heat by emitting IR thermal radiation, and you want to stop that process. This is a big field but the approach most people use is ...


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You should run the experiment. If you've got 4 plastic bins, one weekend, just half-fill all of them in two pairs, each pair consisting of one half containing water from a pot on the stove, the other containing water from the fridge. Measure the temperature of the "cool" water after an hour or two. With that said, air mostly distributes stuff by convection: ...


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Lunar soil or lunar regolith, is mostly created by meteorite and micrometeorite impacts which directly pulverize the rock, or from the ejecta from the impact. Some amount (I can't seem to find any figures) is also created from high-energy particles in solar wind causing bits of rock to spall. In theory, the bootprints would last until the soil turns over ...


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Physical things (solid, liquid, gas, plasma) both absorb and emit energy in the form of electromagnetic radiation of a wide range of frequencies. How fast they radiate and the strongest frequencies of radiation depend on the absolute temperature. How fast they absorb depends on the temperatures of objects around them. Therefore, the net intensity (energy per ...


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In a classical way excited particles emit the received energy in discrete quanta, later named photons. As a good description of photon emission one can take the process of stimulated emission. The imagination, that the emission of energy from an excited electron is distributed all other the space is wrong. The best way to predict processes inside the ...


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In the classical picture, an incoming wave excites a (damped) oscillation in an atom. We imagine that the oscillation is of bound electron(s). The oscillating electron(s) then re-radiates electromagnetic waves, but importantly, these waves are emitted in a continuum of directions, following the spatial distribution emitted by an oscillating electric dipole. ...


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The IR radiation from a gas heater is dangerous, but not for the reasons you seem to think. Each year nearly 500 people die as a result of space heater radiation http://www.nfpa.org/press-room/news-releases/2010/space-heaters-involved-in-79-percent-of-fatal-home-heating-fires. Granted, in the US, space heaters are almost always electric, but I'm sure there ...



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