It depends on the length of the person's arm, and the width or length of a table (depending on the person's position at the table). For example, if a person can reach 2-feet, but they want to reach across the length of a 6-foot table, then they can't reach very far.
Heat would dry the earth. If the water table is down far enough it would not be affected.
Terrestrial radar, using over-the-horizon techniques, around 3000~5000 km. Astronomical radar, at least as far as Venus.
To take a riff on the common comedy bit: How long is a piece of string? It depends on the composition and mass distribution of your table and your object.
D. Noble Gases
Perception is a complex process because it can be far different from reality. It can also vary from person to person. As individuals, each person's perception can be different.
For a water well, until you reach the water table. The depth will vary.
They create a white sheet of ice across the ocean ( as Far as it can without being melted by the sun
it reach far far in
In the Safari Zone, you go as far as you can until you reach the end and there will be a person rewarding you the HM Surf for getting that far.
With an 8' ceiling, approx 30-36 inches above the table. High enough to see guests across a table & not bump your head into while passing the gravy boat.
It depends how long their arms are
Fire-walking has been documented as far back as 1200 BC across the globe.
Till he can reach the destination If you hitched on a space shuttle, aproximately 270,000km. I'm not sure what that is in miles.
the metallic character increase down the group as the size of atom increase down the group so the electron in outer most shell r more free to move
Raise your hand up and wave a bit to try to get your waiter's attention.
across Asia to Europe?
for forever