radio – Montessori Muddle

Phosphorus: What is it good for?

So other than digging in Morocco, where do we get more phosphorus? Here’s a hint: the symbol for phosphorus on the periodic table… is “P.”

— Horwich (2011): The end of phosphorus on APM’s Marketplace.

Marketplace’s Jeff Horwich has an excellent article on the uses of the element phosphorus, where it comes from, why it’s getting scarce, and where we might get more.

The answers to these questions are:

It’s a key element in DNA, so the major use is fertilizer,
most of it comes from Morocco these days,
since Morocco supplies about 85% of the world supply, they’re developing a bit of a monopoly and the price is going up,
the main alternative sources are manure and urine that have lots of phosphorous. In fact, burning sewage leaves behind a phosphorous rich ash.

Marketplace tells the story in much more detail.

Considering going back to grad school?

Consider the startlingly accurate recommendation of Adam Ruben:

Note: I’m a big fan of both Endurance and Eats, Shoots and Leaves not just for grad school, but for middle school as well.

Music in the morning

We did poetry in the mornings last year at the end of our community meetings as a substitute for musical appreciation. However, the inestimable Anna Clarke, sent me the link to NPR’s 100 most important American musical works of the 20th century. The 8-13 minute long pieces include excerpts of the music, an interview with someone connected to the music and commentary by the NPR reporter. First on the list is ‘Adagio for Strings’ by Samuel Barber.

I’ve also caught their series on 50 great voices which is a great place to discover some truly iconic voices from around the world that I did not even know about.