How the humble S-bend made modern toilets possible – BBC News

via How the humble S-bend made modern toilets possible – BBC News

“”Gentility of speech is at an end,” thundered an editorial in London’s City Press, in 1858. “It stinks!””

“More than 170 years later, about two-thirds of the world’s people have access to what’s called “improved sanitation”, according to the World Health Organization, up from about a quarter in 1980.”

“Across various African countries, for example, it reckons inadequate sanitation lops one or two percentage points off gross domestic product (GDP), in India and Bangladesh over 6%, and in Cambodia 7%”

A Quantum Pioneer Unlocks Matter’s Hidden Secrets – Scientific American

Fascinating article!  I learned a new term from this article – Quantum Critical Point.

via A Quantum Pioneer Unlocks Matter’s Hidden Secrets – Scientific American

I followed one of the names mentioned in the article to find this short lecture on the topic.

A lingering question in my mind is about the energy consumed (be it in a cooling process, or in the application of high pressures, or in some other process) in creating these superconducting states and maintaining them for practical applications.  Seems like that would be significant regardless of the efficiencies achieved once you get there.  Is there not a trade-off involved?  I do not remember any mention of this aspect in the article or the video.

The Sideways Elevator of the Future Is Here, and It’s Wild | WIRED

The system uses magnetic levitation. It can be more efficient than a system of conventional elevators, not primarily because of speed, but because of the ability to move units across shafts and stack them when needed.

via The Sideways Elevator of the Future Is Here, and It’s Wild | WIRED