Science Has a New Way to Gauge the Universe's Expansion Rate

Science Has a New Way to Gauge the Universe's Expansion Rate

A new line of evidence, first announced last summer, suggests that the cosmic expansion rate may fall much closer to the rate predicted by early-universe measurements and the standard theory of cosmology.

How to Levitate Objects With Sound (and Break Your Mind)

How to Levitate Objects With Sound (and Break Your Mind)

But at Argonne National Laboratory in Illinois, physicist Chris Benmore and his colleagues are levitating objects with an unlikely tool: sound.Beyond the entertainment value, acoustic levitation is helping Benmore and his team do science: They're suspending pharmaceuticals and watching how molecules interact, by pointing the most intense X-ray source in the western hemisphere at the acoustic levitator.

Russia Takes a Big Step Toward Internet Isolation

Russia Takes a Big Step Toward Internet Isolation

Over the holidays, the Russian government said it had completed a multi-day test of a national, internal internet known as RuNet, a bid to show that the country's online infrastructure could survive even if disconnected from the rest of the world.

Science Conferences Are Stuck in the Dark Ages

Science Conferences Are Stuck in the Dark Ages

Unlike teaching, where we have real consequences when we fail to modernize, such as poor evaluations and losing enrollment, there are no real consequences for the professional societies organizing the meetings or for presenting scientists.

Police Shootings May Be Causing Black Infants Long-Term Harm

Police Shootings May Be Causing Black Infants Long-Term Harm

He focused on two markers of infant health—gestational age and birth weight—and compared them with the data on police shootings in California over the same nine-year period.White and Hispanic infants didn’t seem to be affected, and police shootings of unarmed victims of other races didn’t produce a strong effect either.

Facebook's Plan for 2020 Is Too Little, Too Late, Critics Say

Facebook's Plan for 2020 Is Too Little, Too Late, Critics Say

Among the features announced Monday were new interstitials—notices that appear in front of a post—that warn users when content in their Instagram or Facebook feeds has been flagged as false by outside fact-checkers.

Cars Aren't Going Anywhere, and More Transportation News This Week

Cars Aren't Going Anywhere, and More Transportation News This Week

Most jet engine designers test their creations on the ground.A Florida startup once just made model planes—but now it’s building little baby jet engines for drones.

An AI Pioneer Wants His Algorithms to Understand the 'Why'

An AI Pioneer Wants His Algorithms to Understand the 'Why'

In March, Yoshua Bengio received a share of the Turing Award, the highest accolade in computer science, for contributions to the development of deep learning—the technique that triggered a renaissance in artificial intelligence , leading to advances in self-driving cars , real-time speech translation , and facial recognition .Now, Bengio says deep learning needs to be fixed.

Headed to Mars? Pack Some Aerogel—You Know, for Terraforming

Headed to Mars? Pack Some Aerogel—You Know, for Terraforming

It’s called a solid-state greenhouse effect—light penetrates the surface, passes through the translucent ice, and then hits darker regolith, which warms up. Could an insulating material create a solid-state greenhouse effect warm enough to make Mars habitable?

Physics Tricks to Make Steph Curry's Golf Show More Extreme

Physics Tricks to Make Steph Curry's Golf Show More Extreme

The fake force allows a rotating reference frame to act like a stationary one. In the non-rotating frame, the ball just moved along with a constant velocity—just as it should with no net forces acting on it.

The Wagon Wheel Effect Shows the Limits of the Human Brain

The Wagon Wheel Effect Shows the Limits of the Human Brain

Some, like the wagon wheel illusion, rely on frame rate tricks (with the right camera settings, flowing water can appear to freeze in midair).

The Evolution of Stereotypical Color-Coded Childhoods

The Evolution of Stereotypical Color-Coded Childhoods

Project I of the series, shot in 2005 as part of Yoon's MFA program at the School of Visual Arts in New York, featured young girls with their pink belongings and boys with the blue.

Space Photos of the Week: YORP Effect, Cosmic Ducks, and More

Space Photos of the Week: YORP Effect, Cosmic Ducks, and More

And, still staying within our solar system, we will swing by an asteroid called Gault that is being torn apart by our sun in a fun phenomenon called the YORP effect, or Yarkovsky–O'Keefe–Radzievskii–Paddack, named after the people who discovered it.

The Physics of the Doppler Effect, Represented as Tiny Balls

The Physics of the Doppler Effect, Represented as Tiny Balls

Notice how the balls look "bunched up" on the left side of the sound source but spread out on the right side? Here is a plot of the apparent ball frequency for a source moving at 4 m/s with the ball sound speed of 10 m/s.

India Is Cracking Down on Ecommerce and Free Speech

India Is Cracking Down on Ecommerce and Free Speech

Since December, Indian policymakers have taken a page from China’s playbook, enacting sweeping restrictions in an attempt to curtail the power of ecommerce behemoths like Amazon, and pushing proposals that would require internet companies to censor “unlawful” content, break user encryption, and forbid Indian data from being stored on foreign soil.

Don't Blame Fortnite for Activision-Blizzard's Layoffs

Don't Blame Fortnite for Activision-Blizzard's Layoffs

There is a Fortnite Effect, yes, but it's not being caused by the game's continuing utter dominance—the source is a lack of original thinking among developers and investors both. Activision-Blizzard announced that it would pour money into its games, increasing development staff up to 20 percent over the next year.

Cities Cause Hurricanes to Dump Extra Rain on Them

Cities Cause Hurricanes to Dump Extra Rain on Them

“We said, what if we replaced the urban area of Houston with cropland?” Using a system called the Weather Research and Forecasting model to simulate climate and its changes over a region (as opposed to models with lower resolution but wider geographic scope), that’s actually possible.

THC! CBD! Terpenoids! Cannabis Science Is Getting Hairy

THC! CBD! Terpenoids! Cannabis Science Is Getting Hairy

It’s called the entourage effect: THC, like a rock star, only reaches its full potential when it rolls with a crew, consisting of hundreds of other compounds in the plant that scientists know about so far.But the problem with researching a schedule I drug is that the government doesn’t want you to do it.