Source: Wikipedia
Archaeology usually has the opposite problem to this one. Objects survive and their purpose is unclear because nothing organic remains around them.
Here the object survives in extraordinary condition,…
Almost every physical process runs the way intuition expects. Hot things cool. Cold things warm. Something that starts closer to a target reaches it first.
Which is why this particular…
There is a category of human behaviour that is universal, immediately recognisable across every culture, entirely involuntary, and without a settled explanation.
Emotional crying belongs in it, alongside blushing and…
The wheel is frequently described as the great invention. The wheel-and-axle pair is the invention; a disc that rolls is obvious, and attaching it usefully is not. Here are twelve…
The useful way to think about paint is as a delivery system. The colour cannot stick to anything by itself, so the entire technology is about getting it onto a…
Acid is the most under-used correction in home cooking, and most of what it does is invisible in the finished dish. Here are sixteen jobs it performs.
1. It Lifts…