Under the pseudonym of Daedalus, David Jones has been writing for Nature and New Scientist for thirty-odd years; this is the second collection. The hundred short essays here are a hard-to-describe cross between humour and serious scientific speculation. The humour is actually in the science itself, which sounds hard to believe until you read it.
For example, Daedalus comes up with a scheme to generate electricity from the Rockies, not by hydro-electricity, which lets the descent of water generate power, but by the descent of the mountains themselves. After all, he points out, there is an enormous amount of energy locked up in all that high-altitude rock. His scheme for "geo-electric power" solves far more of the difficulties in this plan than you might think, though (in this case) not all of them. The plausibility is itself the joke--it's not so much that the scientific reader likes trying to spot the error, though that *is* fun to try to do; Daedalus just presents these outrageous ideas completely deadpan, and with a great deal of supporting evidence.
In fact, there is no flaw at all in many of his schemes. A column of his, collected in the earlier "Inventions of Daedalus", is actually cited by the inventors of buckminsterfullerene as an early paper talking about the possibilities for hollow carbon molecules, and several other articles have been either prescient or have turned out to track current research. But the book is not just for scientists and engineers--anyone with a lay interest in science will love it.
I recommend leaving it in the bathroom; each essay is a couple of pages--just right. It'll keep you entertained for months.