901
Can face masks protect against COVID-19?-How well do face masks protect against COVID-19?
Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 913 posts.
902
Collections: The Fremen Mirage, Part I: War at the Dawn of Civilization
Bret Devereaux (A Collection of Unmitigated Pedantry)2020cited by 42History & Retro Computing details
This week’s post is the first in a four part series (II, IIIa, IIIb, interlude, IV) looking at what I’m going to term the Fremen Mirage (a play on Le Mirage Spartiate, which we’ve…
903
Sizing Up Twitter Users
Twitter users are younger, more likely to identify as Democrats, more highly educated and have higher incomes than U.S. adults overall.
904
Obesity
When did obesity increase? How do rates vary across the world? What is the health impact?
905
Target didn’t figure out a teen girl was pregnant before her father did
And that one article that said they did was silly and bad
906
Narcissistic personality disorder
This mental disorder includes an unreasonably high sense of importance, a need for excessive admiration, fragile self-esteem, and troubled relationships.
907
Coronavirus (COVID-19) Vaccinations
Explore data on COVID-19 vaccinations across the world.
908
U.S. Health Care from a Global Perspective, 2019: Higher Spending, Worse Outcomes?
Americans are living shorter, unhealthier lives. Yet, the United States outspends other wealthy nations when it comes to health care, according to a new Commonwealth Fund report. This analysis compares the U.S. to 10 other high-income nations on spending, outcomes, risk factors, and quality.
909
Meat and Dairy Production
Meat is an important source of nutrition for people around the world. How quickly is demand growing? And what are the implications for animal welfare and the earth’s environment?
910
Employers steal billions from workers’ paychecks each year: Survey data show millions of workers are paid less than the minimum wage, at significant cost to taxpayers and state economies
This report assesses the prevalence and magnitude of one form of wage theft—minimum wage violations (workers being paid at an effective hourly rate below the binding minimum wage)—in the 10 most populous U.S. states. We find that, in these states, 2.4 million workers lose $8 billion annually (an average of $3,300 per…
911
Study of 72,000 COVID-19 patients finds 2.3% death rate
Researchers from China's Center for Disease Control and Prevention today describe the clinical findings on more than 72,000 COVID-19 cases reported in mainland China, which reveal a case-fatality rate (CFR) of 2.3% and suggest most cases are mild, but the disease hits the elderly the hardest.
912
The “Why your anti-spam idea won’t work” checklist
This comes up regularly on Slashdot and I find it hilarious each time, but can never find it when I go looking for it. So, here it is:
913
Not just “a few bad apples”: U.S. police kill civilians at much higher rates than other countries
Police violence is a systemic problem in the U.S., not simply incidental, and it happens on a scale far greater than other wealthy nations.