1/ .@AmerChemSociety "Chemical sensor researchers have embraced consumer electronics with gusto because of the convenience and possibilities they provide. Think about the connectiveness of smart phones. Think about the cameras on these phones..
“Chemical sensors are an unmet need within smart devices, despite the fact that watches & phones typically have many sensors”.
Justin Gooding, Editor-in-Chief @ACS_Sensors weighs out pitfalls & rewards of relying on consumer electronics
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https://t.co/1Pu5miK0fk
Canadian computer scientist Ken Iverson introduced the modern symbols and names for the floor and ceiling functions in 1962.
Typesetters made the symbols work by trimming the tops and bottoms of the square brackets, [ and ].
Iverson's notation was quickly adopted.
A sign of wisdom is choosing not to believe everything you think. A mark of emotional intelligence is choosing not to internalize everything you feel.
Thoughts and emotions are possibilities to ponder, not facts to accept. We don’t always invite them in, but we do decide whether they deserve to stay.
Joseph Liouville was born exactly 216 years ago. In 1844, he became the first person to prove the existence of transcendental numbers — numbers that are not roots of any non-zero polynomial equation with integer coefficients — and provided the first explicit decimal examples, such as the Liouville constant.
Here's an example when scientists were wrong - and the outsider was right
In Gulliver’s Travels (1726), Jonathan Swift mocked British scientists for failing to solve the Longitude Problem: how to track your east-west position within a mile after crossing the Atlantic.
It was the great scientific challenge of the 18th century. Parliament offered £20,000 - worth millions today - for a solution, entrusting the Royal Observatory to award the prize.
In 1731, a self-taught clockmaker, John Harrison, cracked it. The astronomers didn’t believe him. For 40 years, Harrison refined his invention while the Observatory stonewalled.
Only in 1773 - by act of Parliament - did he finally receive the prize and east-west navigation could be made safe.
Happiness depends on the freedom to exit toxic relationships and enter healthy ones.
97k people, 34 countries: Well-being is higher when changing groups, friends, and partners is easy and acceptable.
A vital form of liberty is the ability to choose the people in our lives.
On November 12, 1833, there was a meteor shower so intense that it was possible to see up to 100,000 meteors crossing the sky every hour. Many at the time believed it was the end of the world, leading Adolf Vollmy to create a woodcut inspired by the event.