Could we use arecibo radar frequencies to read a message in a paper in an alluminium ball buried in a planet?
Can radar frequencies of 13 cm aprox be used to read a paper buried in an aluminium ball beneath the surface (of a planet for example)?
How much will radio waves penetrate an aluminium foil ball to tell us what is inside of it? If we use ground penetrating radar frequencies with radiotelescopes could we see what’s beyond the surface of planets? How much depth will radio waves penetrate in a wrinkled aluminium foil ball? How much depth can radio waves penetrate in a wrinkled aluminium foil ball? Can radiotelescopes as arecibo image the subsurface of an asteroid or a planet penetrating into atmosphere and surface: several cm of metal or rock? What is the surface of Mercury similar to? How many free surface does a mercury drop have in water? (iii) point in the image. Could we use 13cm wavelength radio waves to see a message in a paper? What is the surface of Mercury like? Why mercury is used in manometer? Can we observe planets surfaces and subsurfaces using radio/micro/IR waves passively? Can we use ground penetrating radar frequencies with ground based telescopes into solar system planets to see their subsurfaces? Does radar uses latitude and longitude? What's it like on the surface of Mercury? What type of electromagnetic radiation can we use to see small things through a 1 or 2mm layer of aluminiuin an earth like planet from here? Why is mercury used in thermometers? Could we use radio waves and microwaves (with enough small wavelength) to read a message in a wrinkled paper, metal or a rock? Is it ok to use earth or ground as a neutral in AC? How does ground based synthetic aperture radar work? What are the uses of mercury except thermometer? How is the density of an aluminum metal determined? How is the density of aluminum determined? Could we use a radio waves of 100 or 1 meter wavelength to read a message written in a paper? How can you measure the atmospheric composition? If radiowaves are reflected from objects (i.e planets) and they can penetrate a bit in the surface, we could image the subsurface right? How far is Mercury from the Sun and how does its proximity affect the planet’s characteristics? If radiowaves are reflected from objects (i.e planets) and they can penetrate a bit in the surface, we could image the subsurface isn't it? How are radar detectors legal? How can astrophysics calculate weight, temperature, and materials that exist on other planets that are a million light years away? What are some examples of metals found in comets?