The idea that fixes everything else is that suction does not pull. Removing air from a tube lets the surrounding atmospheric pressure push liquid up into it, and the atmosphere…
The starting point is that the front of your eye is a living surface with no blood supply, exposed to open air, that must stay optically perfect. Almost everything below…
The whole subject rests on one arrangement: a stored precursor and an enzyme, kept in separate compartments inside the cell, which combine the moment anything damages the tissue. Here are…
There is a long-standing assumption in how intelligence gets discussed, and corvids are the clearest available argument against it.
The assumption is that sophisticated cognition requires a particular kind of…
Cheese is a protein network holding fat and water inside it. Heat loosens or tightens that network depending on how it was made, and every behaviour below is a consequence…
There is an assumption embedded in ordinary language about growing old, and it is worth examining because it turns out to be misleading.
The assumption is that ageing is what…