Hornbein's latest activity

A pocket sundial! from 1637. Such is not that unusual in the era before pocket watches. What is unusual is the map with labeled zones...

I found out that most of the news I’d been listening to for the past few months had been generated by AI impersonators! So what I do now...

I opine that Darwin/Wallace theory of natural selection explains a good deal of human behavior. If thy neighbors annoyeth thee why not...

TIL that you cannot laugh at your own posts here at PF.

TIL that certain marine animals "steal" chloroplasts from marine plants, after which they can live on sunlight for a pretty long time...

This is about as good as it gets. The whole band is great, a most unusual thing. Drummer Don Alias somehow seems to always be...

A new phenomenon is AI-generated news videos pretending to be by well-known professors Jeffery Sachs and John Mearsheimer. The amazing...

Consider wall sits, something that serious skiers do. Lean against a wall as though sitting in a chair, held up only by friction...

I don't noticeably sweat or heat up either way. It is true that the time for running is less so theoretically more heat is expended in...

Right, it seems to me that the amount of work done is the same. Lately I experimented -- Tokyo Metro has many stairs -- and felt I...

The reason is that people prefer louder music (until it gets too loud). Today the game is to make your pop record as loud as possible...

Actually running up stairs is easier. I learned it when I was a kid and have practiced it my whole life. It appears I am the only...

On Earth field reversal happens maybe twice in a million years. It takes millennia to complete, gradual adjustment is very possible so...

Someone told me this was the worst cover in the world. I think it's really good, the drummer especially. Shows how subjective this...