We determined interstellar cosmic ray exposure ages of 40 large presolar silicon carbide grains extracted from the Murchison CM2 meteorite. Our ages, based on cosmogenic Ne-21, range from 3.9 +- 1.6 Ma to ∼3 =- 2 Ga before the start of the Solar System ∼4.6 Ga ago.
Month: April 2020
SK Digital Contact Tracing
In South Korea, the government is disseminating detailed tracking data on people with COVID-19. Most of the residents’ feedback is asking for more information, for us to be even more revealing.
the west is fucked
Animals without Microbiomes
Strictly herbivorous tree-dwelling ants were more likely to have an abundant microbiome, omnivorous and carnivorous ground-dwelling ants consumed more balanced meals and had negligible amounts of bacteria in their gut.
Frontline medical worker

it is the pride of our world class-healthcare system
Contagion vs COVID-19
I would have never imagined that the movie needed a “bad guy” beyond the virus itself. It seems pretty basic that the plot should be humans united against the virus. If you were writing it now, you would have to take into account the blunders of a dishonest president and the political party that supports him. But any good studio executive would have probably told us that such a character was unbelievable and made the script more of a dark comedy than a thriller.
200 ka Asian migration
humans were in asia 100 ka earlier than previously thought, because archaeology had a silly obsession with the bible.
Biden Is Losing the Internet
it will mean he loses the election.
Civilization Altering Greatness
Elon starts his engineering from first principles. He wants to know everything down to the physics of exactly why something is possible or impossible. Elon next imagines what the perfect product would be like. Elon considered the characteristics of the perfect electric car and the perfect rocket.
Social vs economic distance
Regulate interactions, not where those interactions take place. Reopen the economy with social distance protocols.
Japan Paper Addiction
unnecessary paperwork will kill many japanese companies
Even the most technologically savvy companies have not been able to completely shake the habit of stamping documents. Line, the company that developed Japan’s most popular chat app, has largely eliminated the use of hanko in its office, designing an application that allows users to seal documents with a digital stamp.