Suppose we have a really long straw with vacuum in it and closed from both ends. We submerge one end of the straw at the bottom of the ocean, and place the other end in outer space. If we now open both ends of the straw, what will happen to the water in the ocean?
What would happen if a closed hollow tube had one end fixed on the earth and the other end raised into space and then both ends were opened?
What would happen if the shape of earth became a hollow semi-sphere? Would it be possible to stand on the inner surface? If you dug a hole through the earth, and came out the other side what would happen? What if the Moon is hollowed? If there were a hole drilled directly from the surface of the planet through the center; what would happen if someone jumped into it? On the Earth, a stone is thrown from a height in a direction parallel to the Earth's surface while another stone is simultaneously dropped from the same height. Which stone would reach the ground first and why? If we were to build a pipe so long starting from the Earth and into outer space, (use your imagination) would the air from the Earth's atmosphere leak out into space? And, if not, what would happen? The hole is drill along the diameter passing through the center of the earth. If we keep one mass at the start of the hole then what will happen? What would happen if a fire on the ISS opened out to outer space? If I dug a huge hole in the ground in a straight line what would happen when I reach the opposite side of the Earth? Would my head or my feet come out first? Why does the hollow shaft transmit more power then the solid shaft? What would happen to Earth's trajectory if we attached an unbreakable rope from the North Pole on Earth to an arbitrary anchor point on the moon? In Ender's Game, what would they have done if Ender hadn't existed? What happens at the end of 2001: A Space Travesty? What would happen if only the Earth lost gravity for one second? What would happen if the Earth stopped spinning in an instant? What will happen if you connect phase and ground? What would happen if there was no gravity on the moon and earth? What would happen to a chain attaching the Moon to the Earth? If the Earth was flat, would water flow over its edge into space? What will happen if somehow the earth stopped rotating and revolving at the same time? What would have happened if Earth was pyramidal in shape? What would happen if the whole earth was flooded? What would happen if two equal perfectly spherical asteroids with 1 km diameter each, both made of lead, collided at 1 m/s? Hypothetically, if you removed all the water from the surface of the earth what would happen? What high volume manufacturing processes are used to seal the end of a thin steel tube? In the case of the Schrodinger's Cat paradox, wouldn't the cat actually die from suffocation in a completely sealed box, or if you provided holes, couldn't we see whether it is alive or not? What would happen if the Earth went into a zero gravity state for 10 seconds? What would happen if the Earth abruptly stopped spinning for 42 seconds? What would happen if the moon suddenly crashed into the earth? What would happen if the earth lost its gravity for 10 seconds or so?