There's a New Ghostbusters Movie Coming in 2020

Well, there's a new Ghostbusters movie in the works from Jason Reitman (son of the original's director), Apple is adding some big names to its initiative to make original content, and Steve Carell is working on a Netflix show about Space Force.

Be Careful Using Bots on Telegram

"A bot would dramatically undercut the security properties of a chat." Kenn White, Open Crypto Audit Project But Telegram's bot platform relies instead on the Transport Layer Security protocol used in HTTPS web encryption. While researching one such malware scheme, Forcepoint accidentally discovered that Telegram chats that include bots have reduced security.

A Magic Wand? Nope, Just Good Ol’ Fashioned Physics

What happens if I hang a neutral object from the string and bring the positively charged PVC pipe? These moving electrons experience an attractive force from the positive charges on the PVC and thus move to the right side of the metal (as seen in the diagram).

The Clever Clumsiness of a Robot Teaching Itself to Walk

But lately, researchers have been experimenting with a novel way to go about things: Make robots teach themselves how to walk through trial and error, like babies, navigating the real world.

The Year the Alt-Right Went Underground

But in its place has come something shadowier and far older: an underground white supremacist movement operating on society’s fringes, and a culture that disavows the racists while quietly mainstreaming their ideas.

Rotating Detonation Engines Could Propel Hypersonic Flight

Rotating Detonation Engines Could Propel Hypersonic Flight You know in movies, how the heroes are running away from an explosion, then get knocked forward by the shockwave?

Physics Owes a Lot to a Little-Loved Math Class

I will use all of the triangles in the drawing above and measure both x and y (although x doesn't change) and then plot the ratio of y/x versus the angle theta.

A Bug-Like Robot Uses Electricity to Walk Upside Down

“The idea is with three legs on the ground, it's always statically stable,” says Wyss roboticist Neel Doshi, coauthor on a Science Robotics paper describing HAMR’s new power.About that static: Think of the robot as sticking to the surface like a magnet, only the forces here are electric.

How Dense Does a Body Have to Be to Break a Concrete Floor?

I'm going to assume the floor is made of concrete and that the gravitational force on Vision (due to his large mass) is enough to exceed the compressive strength of concrete to initiate the break.What is "compressive strength"?

Nationwide Bomb Threats Look Like a New Spin on an Old Bitcoin Scam

Nationwide Bomb Threats Look Like a New Spin on an Old Bitcoin ScamEduardo Munoz Alvarez/Getty ImagesIn offices and universities all across the country Thursday, the same threat appeared in email inboxes: Pay \$20,000 worth of bitcoin, or a bomb will detonate in your building.

What Would It Take to Shoot a Cannonball Into Orbit?

The motion of a ball falling on the surface of the Earth is caused by the same interaction as the moon orbiting the Earth. In particular, I want to know the height of the mountain and I want to check the trajectory of the cannon ball paths.

Deputy AG Rod Rosenstein Is Still Calling for an Encryption Backdoor

Rosenstein did, though, repeat past assertions that unyielding encryption blocks crucial investigative avenues, and potentially endangers public safety."There is nothing virtuous about refusing to help develop responsible encryption, or in shaming people who understand the dangers of creating any spaces—whether real-world or virtual—where people are free to victimize others without fear of getting caught or punished," Rosenstein said.It is not so certain, though, that encryption meaningfully hinders law enforcement to the degree that the government alleges.

Amazon Wants You to Code the AI Brain for This Little Car

Amazon Wants You to Code the AI Brain for This Little CarAmazon's Deep Racer radio-controlled car is designed to help coders get started with the AI technique that Google used to beat a champion at the board game Go.AWSTwo years ago, Alphabet researchers made computing history when their artificial intelligence software AlphaGo defeated a world champion at the complex board game Go. Amazon now hopes to democratize the AI technique behind that milestone—with a pint-size self-driving car.The 1/18th-scale vehicle is called DeepRacer, and it can be preordered for \$249; it will later cost \$399.

Try Landing InSight on Mars (Without Exploding)

Finally, the lander detached from the parachute and traveled the last part of the journey using rockets to control its descent.Now for the real question, though: Could you be in charge of the InSight landing?

How to Deconstruct a Football Tackle With Physics

This says that the total force on an object (or football player) is equal to the rate of change of momentum. I can find that Thompson force by looking at his change in momentum in that same time interval.

One drone had the owner's credit card information stored in a database that law enforcement officials were then able to access.Watson and NIST aren’t the only digital experts tapping into this cache of personal information that's flying around on drones.

The Expanse Gets Artificial Gravity Right in This Neat Trick

With no thrust, Jim and Naomi lose their artificial gravity and start floating off the gangway. When the artificial gravity ended, they were still pushing for a short time and this increased their momentum upward.Once they are moving away from the gangway, Jim does something rude.

See How the Buoyancy Force Works in Water or Air

That means that if I calculate the gravitational force on the water that the block displaces, that would be equal to the buoyancy force.

Bridging the skills gap is key for energy access, new jobs

Despite growing demand for home solar systems and other off-grid renewable energy solutions in Africa and Asia, there is a growing shortage of job-ready talent to finance, develop, install, operate and manage these systems.

The New ECG Apple Watch Could Do More Harm Than Good

It wasn't long before healthcare providers starting using them to examine patients with no symptoms or family history of cardiovascular illness.There's no exact numbers on how common preventive ECG screening is in the US, but according to a recent editorial in the Journal of American Medicine, ECG examinations of asymptomatic patients had become regular features of annual physicals by the early aughts—until professional societies ran cost/benefit analyses on the practice and started advising against it.One of those societies was the US Preventive Services Task Force.

The 19th Century Argument for a 21st Century Space Force

Security experts warn that Russia and China are both catching up and developing anti-satellite weapons capable of tripping up America’s strategic orbital foothold.The fourth thing to know about space power is, if America gives up its military dominance, expect its economic influence to wane as well.

Fall Is Here! Time to Learn the Physics of... Falling

However, I want to start with the simplest case of an object falling near the surface of the Earth that has a negligible air resistance force.