World map shows the changing center of the world economy over the last 2000 years. Since the 1950s and the rise of Japan the economic center moved east again. Now China is pulling this center even further east. Source: https://t.co/rXM1CN0Hfdpic.twitter.com/GgM3vv7EJf
The NASA smoke model not painting a pretty picture for the next 5 days in the Pacific NW. Also notice how the eastbound smoke gets wrapped up in Paulette later in the week. #idwx#orwxpic.twitter.com/aLL3tZFA87
Le Québec est sous-représenté dans l’encyclopédie en ligne Wikipédia. Mais Simon Villeneuve, un prof de sciences de Chicoutimi, travaille là-dessus : il a contribué à 10 % de tout ce qui s’y écrit en français ! https://t.co/P8i9neToqM
If there’s life in the upper atmosphere of Venus, then we’re going to find life on many planets and moons – and around other stars. https://t.co/Tdyqo2fLQ3
The physicist Arnold Sommerfeld was the first person to use the contour integral sign ∮ in his 1917 paper "Drude's dispersion theory from the point of view of Bohr's model and the constitution of H₂, O₂ and N₂" pic.twitter.com/jiX0Dho5pI
