Can you see the great barrier reef from space

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

grav forces affect all objects magnetic forces affect magnetic objects and electric currents