No ads anywhere No tracking scripts (though Twitter and other embeds have their own scripts we cannot control) "Classic View"—a widescreen-optimized old-school Ars homepage layout Access to subscriber-only forums where the real Ars graybeards hang out Full-text RSS feeds of all our articles PDF downloads of all our articles The second tier is the $50-per-year Ars Pro++ subscription, currently discounted to $40 with the coupon code springPlusPlus20. … [Read more...] about Ars Pro week, day 2: If you subscribe we’ll pour more ketchup on Lee Hutchinson
5 weeks 2 days ultrasound
Other South Asian countries, too, are wrestling with difficult choices between disease control and the economy. Bangladesh, which has a total of 49 reported infections, has locked down the country until 4 April. Sri Lanka has more than 100 confirmed cases, but has shut down only eight of its 25 districts, citing the hardship to the poor. Pakistan, which has reported the region’s largest number of cases, 1625, has also locked down only a few areas. In an address last week, Pakistani Prime Minister Imran Khan said with one-quarter of its population falling below the poverty line, the country could not afford to a complete shutdown. … [Read more...] about 1.3 billion people. A 21-day lockdown. Can India curb the coronavirus?
PCR coronavirus tests: A swab and a waitMost coronavirus testing discussed by public officials and the media refers to polymerase chain reaction testing, better known as PCR. These tests start with a nasopharyngeal swab, or a swab that goes up the nose far back into the throat. This swab collects mucous, saliva, bits of cells and — if present — viral RNA. The samples are then sent to a lab, where researchers apply chemicals to remove everything but the RNA. Enzymes are then added to transcribe the RNA into DNA. Next, this DNA is put into a real-time PCR (RT-PCR) machine along with another set of chemicals. The RT-PCR machine heats and cools the samples in a process that essentially Xeroxes the DNA, making thousands of copies of any genetic material in the samples. … [Read more...] about Coronavirus testing is ramping up. Here are the new tests and how they work.
In Italy and Spain, where COVID-19 outbreaks have been spreading longer, Amazon refused to shut down facilities after workers became infected, prompting protests. Earlier this month, a group of senators wrote a letter to Amazon CEO Jeff Bezos expressing concern for the safety of Amazon workers and asking, among other things, whether the company would temporarily shut down facilities and provide paid leave for workers if someone tests positive for COVID-19. A petition among workers calling for a similar approach has garnered more than 1,500 signatures. The workers at JFK8 are also calling for paid leave while the facility is shut down for cleaning. … [Read more...] about Amazon warehouse workers walk out in rising tide of COVID-19 protests
Power is delivered quietly and evenly to the pedals. I rode my test Muto almost exclusively in max-power mode as the lower power modes require more effort than I’m willing to expend (exercise!) on an e-bike. Getting the bike started relies almost exclusively on leg power. That’s because Muto is only fitted with a cadence sensor to determine when to engage the motor, as opposed to a more sophisticated (and expensive) torque sensor that delivers power more intuitively. It’s fine: the gears shift smoothly and reliably. … [Read more...] about Muto e-bike review: multipurpose excellence