Tag: insider

Sci&Tech

There's a Right And Wrong Way to Double Mask, New Study Has Found

Sometimes, wearing two masks is better than one. Dr. Anthony Fauci has endorsed wearing two masks for a firm and comfortable fit, and the Centers for Disease Control and Prevention (CDC) have found double masking can improve protection by about 50 percent.  However, double masking may not be necessary if you already have a well-fitted mask, found a recent study published as a research letter in JAMA Internal Medicine.Researchers at the University of North Carolina at Chapel Hill tested several mask combinations on volunteers, from a single cloth mask to doubled-up surgical masks. They found that wearing a full-coverage mask, such as a bandanna or gaiter, over a surgical mask provided the best filtration."[This] leads us to understand that double masking is most effective because of the im...
Sci&Tech

Ingenuity Is About to Try Its First Flight on Mars, And NASA Is Feeling 'Optimistic'

NASA on Saturday said its Ingenuity helicopter may take flight on Mars as soon as Monday 19 April.A flight is planned for 3:30 am EDT (07:30 UTC) after a series of delays pushed the scheduled take-off back. Data is expected to arrive on Earth a few hours later, the agency said in a press release.  "We are optimistic that the helicopter will be able to take off from the Martian surface at this time; however, this is a test and we are prepared that it may not occur," wrote MiMi Aung, a project manager at the Jet Propulsion Laboratory, in a Saturday blog post.Aung added: "Ingenuity is a technology experiment. As such, our plan is to push the envelope and learn by doing. We take risks that other missions cannot, weighing each step carefully."NASA will launch a livestream at 6:15 am EDT (10:15...
Sci&Tech

NASA Delays Ingenuity's First Flight on Mars Due to Test-Spin Alert

NASA has delayed the first flight of its Ingenuity Mars helicopter after a crucial test-spin of the drone's rotor blades abruptly stopped.This was the last major test to make sure the helicopter would be ready for its first flight, which was originally scheduled for early Monday.  Now NASA has delayed the historic liftoff — which would mark the first powered, controlled flight on another planet – to Wednesday.For the test on Friday, Ingenuity was supposed to spin its blades at full speed while on the ground.The two pairs of blades should have spun in opposite directions at more than 2,500 rotations per minute – about eight times faster than an Earth helicopter.On flight day, they'll need that speed to lift the 4-pound drone into the thin Martian atmosphere.That air has just 1 percent the ...
Sci&Tech

Now That You're Vaccinated Against COVID-19, Here's What You Should And Shouldn't Do

With a growing number of states rolling out vaccines to the general public, most US adults could get their hands on a shot by summer, if not sooner. So far, 29 percent of the US population has received a first dose.  But until a majority of the country has been vaccinated, it's tough even for vaccinated people to determine what's safe. Although the Centers for Disease Control and Prevention offers basic guidelines for vaccinated Americans, quite a few common scenarios aren't addressed in the agency's recommendations.For instance, the CDC doesn't offer advice for households in which only some family members are vaccinated, or for people who've received just one vaccine dose.The guidance also stops short of telling vaccinated people whether they can return to indoor activities, and there's ...