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Women with senior jobs sleep better in countries with gender equality

Victoria Heath on Unsplash Women in managerial roles seem to sleep better if they live in a country with greater gender equality. The same isn’t true for male managers, who sleep better in countries with higher GDP. Leah Ruppanner and her colleagues at the University of Melbourne used data from the 2012 European Social Survey to study the sleep of 18,116 people, aged 25 to 64, from 29 European countries. Although it is an annual survey that is circulated across Europe every year, 2012 was the most recent year the participants were asked about their sleep patterns. Advertisement The survey asked people whether they had experienced restless sleep in the past week, along with which country they live in and their occupation. Ruppanner and her team then combined these answers with data on each country’s gender gap, as quantified by the United Nations gender development index.

Miniature human tear glands grown in a lab cry real tears just like us

Miniature human tear glands grown in a lab cry real tears just like us
newscientist.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from newscientist.com Daily Mail and Mail on Sunday newspapers.

Signs that Earth was once almost entirely molten found in ancient rock

Hanika Rizo Chemical signatures in 3.7-billion-year-old basalt rocks from Greenland support the long-held theory that Earth was once almost entirely molten. We know very little about what early Earth looked like – but one theory says that at several times it was almost entirely molten, a magma ocean. These oceans were probably caused by a series of massive impacts with other objects in our solar system that each generated enough energy to melt our planet’s interior. One of the last such collisions is thought to have formed the moon. Advertisement Now, Helen Williams at the University of Cambridge and her colleagues have found evidence of these early magma oceans in ancient rocks.

Electrically Charged Ultra-Thin Glass Screen Could be Used For E-Reader or Billboards

11 March 2021, 4:18 am EST By Yu-Mo Zhang and his colleagues at Jilin University in Changchun, China, have created one of the thinnest electrochromic e-reader prototypes ever produced. It is even more notable that it can seamlessly transition from complete transparency to displaying words with high quality and color intensity. (Photo : Nick Jones / Unsplash) The Discovery Of Electrochromic Display The e-reader is made from a laser-etched page of words between two glass sheets, about a quarter of a millimeter thick. The page sandwiched between the glass sheets is actually a solution of copper ions and black dye molecules. The dye molecules bond with the copper ions when exposed to electrical currents, creating the black etched words.

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