To Fight Climate Change, First You Need to Measure It

To Fight Climate Change, First You Need to Measure It

The aim is to determine the relative concentration of different methane molecules and gain a better understanding of where the pollutants are coming from, explains Emmal Safi, a higher research scientist at NPL.Boreas is one of dozens of unique pieces of equipment measuring pollutants at NPL.

A ‘Last Hope’ Experiment Finds Evidence for Unknown Particles

A ‘Last Hope’ Experiment Finds Evidence for Unknown Particles

In the paper, a team of theorists known as BMW present a state-of-the-art supercomputer calculation of the most uncertain term that goes into the standard model prediction of the muon’s magnetic moment.

This Startup Wants to Take Your Blood Pressure With an iPhone

This Startup Wants to Take Your Blood Pressure With an iPhone

Early on, Olgin and Sinha decided to see how much they could improve outcomes by getting patients to measure blood pressure at home.As he thought about how he might use a phone instead, Sinha started wondering whether a camera and flash might extract information from the fingertip.

Why Insider Job ‘Zoom Bombs’ Are So Hard to Stop

Why Insider Job ‘Zoom Bombs’ Are So Hard to Stop

Stringhini and his fellow researchers, who specialize in how online communities coordinate malicious activity, monitored the organization of mass Zoom-bombing actions on both Twitter and 4chan over the course of 2020.Their findings point to a surprising conclusion: The majority of Zoom-bombing cases the researchers observed began with a participant in the call posting the link publicly and inviting trolls and miscreants to attack it.

The Universe Is Expanding Faster Than Expected

The Universe Is Expanding Faster Than Expected

That seemingly cements the discrepancy with the far lower predicted rate of 67.Freedman and Madore expect to publish their group’s new and improved measurement of the cosmic expansion rate in January.

Physicists Are Closer to Knowing the Size of a Proton … Sort of

Physicists Are Closer to Knowing the Size of a Proton … Sort of

That's because different methods of measuring the proton's charge radius produced results that disagreed —and not just by a little bit.The new work is largely an improved version of past experiments in that it measures a specific orbital transition in standard hydrogen composed of an electron and a proton.

Physicists Pin Down the Nuclear Reaction Just After the Big Bang

Physicists Pin Down the Nuclear Reaction Just After the Big Bang

Their measurement of the reaction rate, published on November 11 in Nature, nails down the most uncertain factor in a sequence of steps known as Big Bang nucleosynthesis that forged the universe’s first atomic nuclei.

Voters Rejecting the War on Drugs Is a Win for Public Health

Voters Rejecting the War on Drugs Is a Win for Public Health

Not putting drug users in jail for possession, Seaman says, will reduce their likelihood of going through withdrawal and then overdosing when they get out.

With $200 Million, Uber and Lyft Write Their Own Labor Law

With $200 Million, Uber and Lyft Write Their Own Labor Law

Fifty-eight percent of the state’s voters approved Proposition 22, which repudiated a recent state labor law that would have required the companies to hire their drivers and delivery people as employees—and pay them traditional benefits, including health care, sick pay, and workers’ compensation.

So Your Wearable Tracks Blood Oxygen Data. How Do You Use It?

So Your Wearable Tracks Blood Oxygen Data. How Do You Use It?

In September, Apple announced that its Watch Series 6 would also have the ability to monitor blood oxygen levels right from your wrist.Why do I need to monitor my blood oxygen level.

The Fate of Gig Workers Is in the Hands of California Voters

The Fate of Gig Workers Is in the Hands of California Voters

A ballot measure would create a new legal classification for Uber drivers, Instacart shoppers, and DoorDash deliverers—not quite employees, but not the independent contractors they’ve been until now.

How Much Power Does It Take to Do the Red Bull 400 Hill Run?

How Much Power Does It Take to Do the Red Bull 400 Hill Run?

The idea is to "run" a distance of 400 meters up a very steep incline.In both the slow and fast run up the hill, you will have the same change in energy.You still have the same change in gravitational potential energy.

Bahamian Queen Conch: Fishers & Scientists Share Knowledge for a Sustainable Fishery

Bahamian Queen Conch: Fishers & Scientists Share Knowledge for a Sustainable Fishery

Shell Lip Thickness Is the Most Reliable Proxy to Sexual Maturity in Queen Conch (Lobatus gigas) of Port Honduras Marine Reserve, Belize; Informing Management to Reduce the Risk of Growth Overfishing.

George Floyd and the Illusion of Progress

George Floyd and the Illusion of Progress

Images place us in time, gluing unremarkable and historically urgent moments in a fixed setting or context, but mostly they thrill our senses in other varied ways.Photographer Stephen Maturen’s snapshot of a young black protester—on his knees and shirtless, hands raised like a goal post—is an image of staggering breadth.

How to Measure Pressure With a Phone and a Baggie

How to Measure Pressure With a Phone and a Baggie

The idea is that the weight increases the air pressure inside the bag, and you can measure the difference with the phone.Would the pressure in the bag be: (a) the same, (b) greater than, or (c) less than with the large square.

Measurements Are Often Full of Lies—and That's OK

Measurements Are Often Full of Lies—and That's OK

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.

America’s ‘Green Economy’ Is Now Worth $1.4 Trillion

America’s ‘Green Economy’ Is Now Worth $1.4 Trillion

That’s why Maslin and lead author Lucien Georgeson accumulated their own data on the U.S. green economy, drawing on hundreds of often private databases containing granular, real-world business and transaction statistics.

Quantum Darwinism Could Explain What Makes Reality Real

Quantum Darwinism Could Explain What Makes Reality Real

One of the most remarkable ideas in this theoretical framework is that the definite properties of objects that we associate with classical physics—position and speed, say—are selected from a menu of quantum possibilities in a process loosely analogous to natural selection in evolution: The properties that survive are in some sense the “fittest.” As in natural selection, the survivors are those that make the most copies of themselves.

Quantum Computers Could Be True Randomness Generators

Quantum Computers Could Be True Randomness Generators

In our case, to randomly output a 50-bit string, you can build a quantum circuit that puts 50 qubits, taken together, into a superposition of states that captures the distribution you’d like to re-create.

The Heady, Thorny Journey to Decriminalize Magic Mushrooms

The Heady, Thorny Journey to Decriminalize Magic Mushrooms

A good deal for anyone but Fluck, who helped lead the ballot campaign to essentially decriminalize magic mushrooms in this city by making enforcement an extremely low priority, a measure that passed by the slimmest of margins early last month.

How to Figure Out a Drone's Angular Field of View

How to Figure Out a Drone's Angular Field of View

How to Figure Out a Drone's Angular Field of View DJI; Wired You know what happens when I get a new toy? But with this new toy, I am going to determine the angular field of view for the Spark camera.

Galileo, Krypton, and How the True and Accurate Meter Came to Be

Galileo, Krypton, and How the True and Accurate Meter Came to Be

By way of Galileo’s simple observation so length and time were seen to be linked—a linkage that made it possible that a length could be derived not simply from the dimensions of limbs and knuckles and strides, but by the hitherto quite unanticipated observation of the passage of time.From the book The Perfectionists: How Precision Engineers Created the Modern World by Simon Winchester.HarperA century later an English divine, John Wilkins, proposed employing Galileo’s discovery to create an entirely new fundamental unit, one that had nothing to do with the then-traditional standard in England, which was a rod that was more or less officially declared to be the length of a yard.

New Satellite's Lasers Will Track Tiny Changes in Polar Ice

New Satellite's Lasers Will Track Tiny Changes in Polar Ice

Once it settles into orbit 310 miles above the Earth, the satellite will start collecting data using a specially designed laser device that will give scientists more data about exactly where ice is melting and how fast.The NASA satellite will scan the Earth’s surface using six green laser beams to measure glaciers and floating sea ice.

Blackmore's Lidar Solves Self-Driving Cars’ Need for Speed

Blackmore's Lidar Solves Self-Driving Cars’ Need for Speed

But you can only measure where something’s going, and how fast, if you manage to hit it again and again.Blackmore's lidar reads the velocity of the objects it detects: The things moving away from the vehicle are in red, those moving toward it are in blue.

NASA launching advanced laser to measure Earth’s changing ice – Climate Change: Vital Signs of the Planet

NASA launching advanced laser to measure Earth’s changing ice – Climate Change: Vital Signs of the Planet

NASA’s Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will provide scientists with height measurements that create a global portrait of Earth's third dimension, gathering data that can precisely track changes of terrain including glaciers, sea ice, and forests.

Counting on NASA's ICESat-2 – Climate Change: Vital Signs of the Planet

Counting on NASA's ICESat-2 – Climate Change: Vital Signs of the Planet

Hundreds of people at NASA's Goddard Space Flight Center in Greenbelt, Maryland, worked to build this smart-car-sized instrument to exacting requirements so that scientists can measure minute changes in our planet’s ice.