Thousands of migrating birds have inexplicably died in the southwestern US, in what ornithologists have described as a national tragedy that is likely related to the climate crisis.
Drawing crowdsourced data from air quality sensors it sells to the public—ranging between $200 and $300—PurpleAir builds maps that show in real time just how bad a neighborhood like mine is suffering from particulate matter (PM) 2.5 pollution, the particles that make up wildfire smoke.
To power something that energy hungry, he says, means “the mass of the battery would be significantly greater than the mass of the vehicle.” Instead, the company is looking at applications where it is either impossible or impractical to regularly change a battery, such as sensors in remote or hazardous locations at nuclear waste repositories or on satellites.
(“What’s the point of doing anything if no one’s watching?” Suzanne wonders—a point Kurt echoes repeatedly on his spree.)Like Suzanne, Kurt sees violence as a means to an end, and cannot fathom the purpose of life without an audience.
Here’s the thing: Although the global response to this violation was furious, producing the largest intelligence scandal of the modern age, mass surveillance itself continues to work today, virtually unimpeded.
Along with thinning trees in overcrowded forests, Kusel says, biomass projects help rebuild rural communities by creating jobs, all while preventing the massive carbon emissions released in wildfires.Kusel’s projects utilize dead, diseased, and burned trees, along with the small-diameter green trees that he says overcrowd forests and contribute to fire danger.
Following the protests, the Minnesota Department of Health changed the criteria for the state’s still-limited supply of tests to include people who’d participated in mass gatherings within the previous week.
That means a super-duper missile would have a velocity of 137 kilometers per second.So if we want a super-duper fast missile, it's going to have to be in space.If you want a missile to go faster, you need more fuel, which will increase the mass.
When they’re not treating Covid-19 patients in the intensive care unit, the eight doctors on the FLARE team work a second job: updating fellow physicians on the latest novel coronavirus research and debunking the freshest unproven theories floating around on social media.
It didn’t take long for people to realize that the new law, combined with a national citizens register, could easily provide a mechanism for stripping Indian Muslims of their citizenship.
Record heat and drought across Australia delivered the worst conditions in the country since at least 2000, with river flows, tree cover, and wildlife being hit on an “unprecedented scale,” according to a new report titled Australia's Environment.
The car drop happens near the end of the video, starting at 9:20.Even if you don't think this is awesome (c’mon, it’s empirically proven to be awesome), it's still a great source for some physics problems you can work out at home, while we’re all doing this social distancing thing.
As the mass climbs higher, the smoky air cools and forms into a pyrocumulonimbus cloud, a soup of water and smoke particles towering miles into the sky.
Now it's this video of a tug-of-war between the Cybertruck and a Ford F-150 .It's all about friction and the interaction between the tires and the road.The Tesla Cybertruck, with its steel outer shell, is probably more massive than a Ford F-150.Let's be clear.
Recently in my physics lab, students were having trouble with the difference between mass and weight .Weight is a measure of the downward force an object exerts on whatever is supporting it.
Its measured mass would also serve as a check on cosmologists’ theories for how the universe evolved.“Depending on what the mass of the neutrino turns out to be, it may lead to very exciting times in cosmology,” said Diana Parno, a physicist at Carnegie Mellon University and a member of the KATRIN team.
Just ask Mike Massimino , a former NASA astronaut who has flown to space twice for extended stays .Getting medical treatment on the International Space Station is complicated, so NASA does its best to ensure astronauts are in peak physical condition before they leave for the final frontier.
Several of the people buried in the pit had much more tooth decay than the rest of the Yaroslavl dead, which actually suggests that they were pretty well-off.
Research has shown that suicides, too, can spread like a contagion depending on how they are covered, but a consensus has yet to emerge among media organizations about how to handle mass shootings.
Once she's in the air, Simone's center of mass will move along with a constant speed—with the same horizontal velocity at which she was running before the jump.A twist is a rotation of the human body about an axis that runs from head to feet.
It’s a far cry from the spacious beds we have on Earth, but it’s still better than the shared sleeping compartment on the space shuttle, which Mike Massimino , a former NASA astronaut, describes as “a big slumber party.” The trick, Massimino says, was to remember to strap your sleeping bag to the wall so your body wouldn’t drift around during the night.
If this interaction force is the only force acting on our two humanoids for the same amount of time, Captain America's change in momentum will be exactly opposite that of Thanos.
Here is a force diagram for a tiny object pulling a massive object with no friction. For the train (object B), a frictional force is pulling to the right.
This speed limit can theoretically be exceeded if the matter is collapsing fast enough; the Basu and Das model suggests black holes were accreting matter at three times the Eddington rate for as long as the chain reaction was happening.