The thing worth understanding first is that a rope is not a long thing. It is an enormous number of short things arranged so that pulling on the assembly squeezes…
The useful way to think about any bond is as a chain with three links - surface, adhesive, surface - and a chain fails at whichever link is weakest. Here…
There is an enormous quantity of food on this planet that almost nothing can eat.
Cellulose makes up the structural walls of plant cells, which means it constitutes the bulk…
Tides are usually explained by the moon, and that explanation is correct and incomplete.
The moon's pull produces a tidal range in the open ocean of roughly a metre. That…
Almost every emotional display a person produces can be manufactured. Smiles, frowns, gestures, tone of voice, posture — all of them are under some degree of voluntary control, which is…
Source: Wikipedia
Some archaeological claims are interesting because they are true. Others are interesting because of what happens to a suggestion once it escapes into general circulation.
The object usually called…