Look at the cap of a cheap ballpoint pen. There is a small hole in the top of it.
Most people assume it is a moulding artefact, or something to…
Every tyre on every car has a built-in gauge telling you when it is worn out, and almost nobody uses it, largely because almost nobody knows it is there.
It…
On a great many cars there is a line of text etched into the passenger-side mirror warning that objects are closer than they appear, and nothing of the kind on…
A modern car will park itself, watch the lane markings, brake on your behalf and tell you the tyre pressures.
The thing it does about the sun is a flap…
Walk through an airport, a cinema or a hotel almost anywhere in the world and the exit is marked by a green panel showing a running figure heading through a…
The cabin lights go down just before takeoff and just before landing, and most passengers read it as a signal to settle, or a courtesy to people who want to…