diffraction
If you were to drill a hole through the Earth, you would create a tunnel that goes from one side of the planet to the other. Gravity would pull you towards the center of the Earth, and you would experience weightlessness at the midpoint. The journey would be extremely hot and the pressure would increase as you got closer to the center. It is not physically possible to drill a hole through the Earth due to the extreme conditions and technological limitations.
A warm hole is not a recognized scientific term or concept. Perhaps you meant "wormhole," which is a hypothetical tunnel that could create a shortcut through spacetime, allowing for faster-than-light travel between two points. Wormholes are purely speculative and have not been observed or proven to exist.
If the hole passed through the DIRECT center of the earth, it will stop when it reaches the DIRECT center of the earth, it will do this because the are equal amounts of gravity forcing being applied on each one of the infinite sides of the circle.
A kettle hole is a small depression that forms when a block of ice becomes lodged in glacial till, then melts and leaves a depression in the land surface.
The structure you are describing sounds like a crayfish chimney. Crayfish build chimneys out of mud near bodies of water such as creeks. These structures have a hole through the middle that allows the crayfish to access their burrow beneath the ground while keeping it ventilated and protected from flooding.
Take the dipstick out out put it through the small hole were the dipstick goes
Undigested food leaves the body through the anus. It goes from the small intestine to the large intestine and then exits through the butt hole.
the finger goes through the hole.
A mouse can get through a hole the size of a ball point pen (7mm) . A shrew is smaller so can probably get through a hole of 4-7mm. I think small rodents can compress their skulls to squeeze through amazingly small gaps.
The movement of gas through a small hole into an area of lower pressure is diffusion.
On a small block Chevy the distributor goes through a hole in the intake manifold. On a Pontiac the distributor goes behind the intake manifold.
peep
peep
Through a small hole in the base.
peep
peep
peep