Today is the 1-year anniversary of the 2018 sudden stratospheric warming; these charts show the Arctic height anomalies for that event and the recent one. As we all know, this time the downward propagation was much delayed and didn't (yet) produce classic North Atlantic blocking.

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2019-02-13

We're bringing some color into this wintry season with these beautiful flowers from Asa Strong's 'The American Flora,' illustrated by Edwin Whitefield. The 4-vol set includes detailed info on the propagation, culture, & use of 444 plants. Learn more here: https://t.co/UJWL56zDRK

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2018-01-25

Eccentric mechanical movement
https://t.co/Ur4R6xlV4G
Quantum mechanics
Philosophical implications
https://t.co/9JSfgJzkMz
📸Propagation of de Broglie waves

1 1
2017-12-03