Scientific news from May 6, 2022:
In archeology: here is the oldest image of a math lesson dating back to Ancient Greece.
- A Swiss archaeologist and mathematician identified a 2,500-year-old Greek bas-relief as a math lesson given by a teacher to his student.
- This scene is the oldest known depiction of a math lesson.
- The exercise involving accounts was supposed to consist of currency exchange.
On the health front: In the face of Covid-19, protecting only those at risk would be a more deadly strategy than isolation.
- The “Great Barrington Declaration” is a strategy based on targeted protection of vulnerable people (the elderly, those with underlying health conditions) by allowing the virus to circulate in the rest of the population.
- After others, a UK study by the University of Bath shows that this strategy would result in more deaths than imprisonment.
- This work is based on scenarios showing that almost all of these deaths could have been easily avoided because they were in people at low risk.
Healthy: Did a porcine heart xenograft recipient die from swine virus?
- The first person to receive a porcine heart xenograft survived two months after this operation.
- The analyzes show that the presence of the porcine virus in the DNA of the recipient may have contributed to the sudden deterioration of his condition.
- Potential zoonoses and the introduction of new animal pathogens into the human population may slow down the new xenograft trend.
At sea and ocean: a multi-hull built from flax is launched at La Grande Motte
- The new multi-hull ship of sailor Roland Jourdain was launched at La Grande Motte (Hérault) on May 5, 2022.
- This catamaran will be at the start of the next edition of Route du Rhum on November 6th in Saint-Malo.
- “We Explore” was built with flax fiber materials instead of traditional fiberglass.
In geology: a huge reservoir of water discovered in the depths of Antarctica
- A large reservoir of fresh and salt water has been discovered under the polar cap of the Antarctic continent.
- The existence of such a phenomenon changes our understanding of the hydrological system operating in this glacial mass.
- This could indeed affect the patterns of ice flows, which are likely to play a role in sea level rise in the future.