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Popular Week of June 29, 2018

The future is in good hands: Chapter 18.

(Older guy’s annual question) What’s the favorite hobby of people my age?

(early-career group’s annual answer) Travel? Golf?… Reading?… Bridge?… (old guy shakes his head, prompting increasingly sarcastic guesses) Bingo?… Naps?

(Older guy) No… the favorite hobby of people my age is getting together with each other and saying “The world used to be terrific but now it’s going to hell in a handbasket…”

(early-career group – laughter, flash of recognition; after all, they’ve all watched this scene play out at home, year after year – at the dinner table, while growing up; at family reunions; on holidays…)

(Older guy, continuing) …but the cure for that is hanging around you all! To do so is to realize that the future is in good hands.

2018 AMS Summer Policy Colloquium participants

orthohydrous

orthohydrous (or-tho-hy'-drous). (a) Said of coal containing 5-6% hydrogen, analyzed on a dry, ash-free basis. (b) Said of a maceral of normal hydrogen content, e.g. vitrinite. Cf: subhydrous; perhydrous.

drilling rig

drilling rig . (a) In the petroleum industry, a general term for all the equipment necessary in rotary or cable-tool drilling. (b) In environmental/geotechnical usage, a truck or trailer mounted, portable drilling system and accessories. Syn: rig.

Science Release: Hubble proves Einstein correct on galactic scales

An international team of astronomers using the NASA/ESA Hubble Space Telescope and the European Southern Observatory’s Very Large Telescope has made the most precise test of general relativity yet outside our Milky Way. The nearby galaxy ESO 325-G004 acts as a strong gravitational lens, distorting light from a distant galaxy behind it to create an Einstein ring around its centre. By comparing the mass of ESO 325-G004 with the curvature of space around it, the astronomers found that gravity on these astronomical length-scales behaves as predicted by general relativity.

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