The single variable that explains most of what you see is how thick the lava was. Runny lava spreads out and builds gentle slopes; thick lava traps gas, moves barely…
Maya Linton
Everything below comes from one thing: the axis the Earth spins on is not perpendicular to the plane it orbits in. Every seasonal phenomenon anywhere is a consequence of that…
The distinction that organises the whole subject is between comparing and measuring. A balance compares; a scale measures a force. Almost every difference between weighing devices follows from which one…
The useful way to read any station is to work out which of two plans it is, then look at how the roof is held up. Those two facts explain…
There is a phrase that gets used dismissively — that something is just a placebo — and it carries an assumption worth examining.
The assumption is that a placebo response…
Most reported mental phenomena are difficult to study because they cannot be produced on demand, and this one is the extreme case.
It occurs unpredictably, lasts a few seconds, cannot…