Posted on February 28, 2021 at 7:00 a.m.
–
–
The risk of white bread
Eating seven servings a day of white bread or other refined grains, like croissants and pastries, increases the risk of dying by 30%, according to a new international study led from McMaster University in Ontario. This would be due to an increase in cardiovascular risk, especially stroke. The authors, who publish their results at the end of February in the British Medical Journal, took into account many confounding factors, but not the consumption of alcohol or desserts, because consumption patterns in this regard are too different among the countries participating in the study.
Quiz: the Chinese rover Yutu-2 has he discovered a kilometer post on the Moon?
PHOTO PROVIDED BY CNSA
The mysterious rock identified by Yutu-2
–
No, but he studied a mysterious rock that looks like it. The Chinese Space Agency (CNSA) posted a photo of the rock in mid-February on its popular science blog, “Our Space.” The first analyzes show that it could be a harder rock left in place by multiple impacts of meteorites having sculpted its perimeter. Yutu-2 has been walking the far side of the moon for two years.
The figure: 635,000
PHOTO PROVIDED BY THE NEW YORK DEPARTMENT OF THE ENVIRONMENT
Abandoned oil well in New York state
–
That’s the number of oil and gas wells abandoned for nearly a century in Pennsylvania and New York state that engineers at Binghamton University near Syracuse are trying to find. They will use a drone capable of measuring methane emissions from these wells, witnesses of the first wave of oil exploitation at the end of the 19th century.e century. New York researchers, who explain their technology in the Journal of Applied Geophysics as of the end of February, estimate that the 35,000 abandoned oil and gas wells in New York State emit 750,000 tonnes of CO2 per year.
A mammoth of 1 million years …
PHOTO PROVIDED BY THE PALEOGENETIC CENTER OF STOCKHOLM
Co-authors Love Dalén and Patricia Peccnerovaa, from the Museum of Natural History in Stockholm, with a tusk on the Siberian island of Wrangel
–
Scandinavian and Russian paleontologists have pushed the boundaries of dating by identifying the tusks of three million-year-old mammoths. Previously, the record was a 600,000-year-old horse. They think they can go back 2.6 million years. Their analysis, published in mid-February in Nature, shows that the North American mammoth was a hybrid of two Siberian mammoths.
… and a 17,000-year-old kangaroo
PHOTOS DAMIEN FINCH, PROVIDED BY THE UNIVERSITY OF MELBOURNE
The rock painting and the silhouette of the kangaroo identified by Australian paleontologists
–
Australian paleontologists have identified inspiration from Australia’s oldest rock drawing, discovered last year in the western Kimberley region. It is a two meter tall kangaroo. Researchers at the University of Melbourne, who describe their discovery at the end of February in the journal Nature Human Behaviour, dated the drawing with nearby fossilized wasp nests.
–
