Sun-Loving Bacteria May Be Accelerating Glacial Melting

Sun-Loving Bacteria May Be Accelerating Glacial Melting

“What the paper found is that this sediment would not be there without the fact that there's bacteria growing in the sediment and clumping it together so it can't be washed away.” More dark grit, then, could be absorbing more of the sun’s energy, and accelerating the melting of the ice sheet.

Your Car Is Spewing Microplastics That Blow Around the World

Your Car Is Spewing Microplastics That Blow Around the World

Now that scientists know the Arctic is laced with microplastics blown in from Europe, and now that this new work has modeled that route of transport in fine detail, they are concerned that synthetic particles might be darkening snow and ice, accelerating melting.

Covid-19 Is Accelerating Human Transformation—Let’s Not Waste It

Covid-19 Is Accelerating Human Transformation—Let’s Not Waste It

This devastating pandemic, with all its worldwide chaos and horror, has at the same time created a perfect alignment of technology, science, need, and opportunity.

Flying Cars Could Take Off Soon, If We Let the Military Help

Flying Cars Could Take Off Soon, If We Let the Military Help

Our new program, Agility Prime, leverages unique Air Force assets—test ranges, safety certifications, and military missions capable of logging steady flight hours—to build confidence in the technology, attract investors, and hopefully expedite domestic commercialization.Flying cars aren’t the only commercial technology the military can help accelerate.

The Physics of an Elephant-Powered Slam Dunk

The Physics of an Elephant-Powered Slam Dunk

I’d do the same thing for the vertical position to show that it's a parabola associated with constant downward acceleration.Here’s what I get:This is the trajectory for the whole thing, including the end where he bounces off the hay bale and flips over.

FAO - News Article: Germany launches €20 million programme with FAO and UNDP to boost the agriculture sectors’ role in addressing climate change

FAO - News Article: Germany launches €20 million programme with FAO and UNDP to boost the agriculture sectors’ role in addressing climate change

11 December, Madrid - The German Ministry of Environment, Nature Conservation and Nuclear Safety through its International Climate Initiative today announced it is providing €20 million for a new programme co-led by FAO and the United Nations Development Programme (UNDP), to accelerate climate change action in developing countries' agricultural and land use sectors.

Our Planet May Be Barreling Toward a Tipping Point

Our Planet May Be Barreling Toward a Tipping Point

Think of a climatic tipping point, like the accelerating melting of Greenland’s ice sheet, as a chair.A tipping point of runaway effects could come once between 20 and 40 percent of the forest cover is lost, the researchers say, as the system switches from wet to dry, more like a savanna.

A Scientist's Tiny Black Hole Brings the Cosmos Into the Lab

A Scientist's Tiny Black Hole Brings the Cosmos Into the Lab

Jeff Steinhauer makes tiny scale models of black holes in his lab out of rubidium atoms.In another experiment involving cold atom blobs, physicists at the University of Chicago simulated a different extreme environment—what it would be like for a person to accelerate to billions of g’s.

Your Secret Uber Tipping Behavior, Exposed

Your Secret Uber Tipping Behavior, Exposed

The company declined to say whether there have been shifts in tipping since mid-September 2017.The paper relies on detailed data about drivers, riders, and the rides themselves, including length, pickup time, and how many quick accelerations, hard brakes, and speeding stretches occurred during the trip.

FAO - News Article: New pathway for food systems development

FAO - News Article: New pathway for food systems development

FAO’s leader points to the need to turn food systems into accelerators of the SDGs. 25 September, 2019, New York - Food systems are huge economic, social and environmental drivers of transformational change, FAO Director-General Qu Dongyusaid today.

Great Stunt, Spider-Man! Now Let's Fine-Tune the Physics

Great Stunt, Spider-Man! Now Let's Fine-Tune the Physics

Now, if we put this vertical acceleration together with the fixed horizontal velocity , we get something special, called projectile motion. On the next jump, I get a vertical acceleration of –6.074, which is closer, but you can see that the fit is pretty janky.

An Itty-Bitty Robot That Lifts Off Like a Sci-Fi Spaceship

An Itty-Bitty Robot That Lifts Off Like a Sci-Fi Spaceship

But it’s never dreamed up ion propulsion, a fantastical new way to power robots by accelerating ions instead of burning fuel or spinning rotors. But that’s a ways off, because at the moment the four-thruster machine can produce a bit more thrust than it needs to get its weight off the ground.

BMW Steps Up E-Car Target to 700,000 by 2025 as Fines Loom

BMW Steps Up E-Car Target to 700,000 by 2025 as Fines Loom

BMW AG plans to increase sales of electric and plug-in hybrids by 30% every year until 2025 to help meet incoming stringent emission regulation in the European Union, prompting the carmaker to accelerate the rollout of battery models.

Bored Charging Your Tesla? Play a Videogame Right in Your Car

Bored Charging Your Tesla? Play a Videogame Right in Your Car

As long as the car is in park, drivers can race on 22 tracks, using the steering wheel and brake pedal to control their avatar (acceleration is automatic).Working with Tesla, Vector Unit loaded this edition of the game with nods to electric driving.

Post-Apocalyptic Survival Skills: How to Measure Acceleration

Post-Apocalyptic Survival Skills: How to Measure Acceleration

With that, I can find a force-acceleration equation for both masses. With an accelerating mass, the net force is NOT zero. Notice that if the two masses have the same value, the acceleration would be zero meters per second squared (that's good).

The Physics of the Millennium Falcon's Jump to Hyperspace

The Physics of the Millennium Falcon's Jump to Hyperspace

To estimate the acceleration, we can look at the angular size of the back of the Falcon as it moves away. All I need to do is measure the position of the sides of the Falcon and use that to calculate the angular size in each frame of the video during the jump to hyperspace.

Calculate the G’s of Using an Ejection Seat to Blast Out of a Jet

Calculate the G’s of Using an Ejection Seat to Blast Out of a Jet

Even though the seat is actually accelerating downward (because of the gravitational force), it's good enough to get a linear fit and find an approximate post-rocket acceleration with the slope of this line at a velocity of 19.4 meters per second (43.4 mph).

Why a (Very Bad and Unsafe!) Playground Stunt Sends Folks Flying

Why a (Very Bad and Unsafe!) Playground Stunt Sends Folks Flying

This says that the farther you are from the center of the rotating merry-go-round, the greater the acceleration.

Estimate the Friction Coefficient in That Massive Nascar Pile-Up

Estimate the Friction Coefficient in That Massive Nascar Pile-Up

All I need is to determine the acceleration of a sliding car and I can get a value for the coefficient of kinetic friction between the tire and the road.

The ‘Complete’ Cancer Cure Story Is Both Bogus and Tragic

The ‘Complete’ Cancer Cure Story Is Both Bogus and Tragic

What’s Happening On Monday, The Jerusalem Post , a centrist Israeli newspaper, published an online story profiling a small company called Accelerated Evolution Biotechnologies that has been working on a potential anti-cancer drug cocktail since 2000.

Social business, youth and technology to accelerate climate action to 1.5°C

Social business, youth and technology to accelerate climate action to 1.5°C

Yunus also highlighted the important role of today’s youth during the UNGA Social Business, Youth and Technology event: “You are the most powerful generation in the human history with all technology available, and the most vulnerable if you do not behave right.” This was followed by Connect4Climate presenting the Youth Unstoppable call-to-action video that showcased young voices who don’t want to waste time, who want to be ambitious, and above all, want to act on climate: “We are the next leaders and we are unstoppable.”

How to Easily Locate the Accelerometer in an iPhone

How to Easily Locate the Accelerometer in an iPhone

Moving in a circle at a constant speed means there is indeed an acceleration.If we have an object moving in a circle, the acceleration is pointed towards the center of the circle and depends on two things: the angular velocity (ω) and the circular radius (r).

What the world needs now to fight climate change: More swamps

What the world needs now to fight climate change: More swamps

Wetland soil carbon, accumulated over millennia and now being released to the atmosphere at an accelerating pace, cannot be regained within the next few decades, which are a critical window for addressing climate change.

News Article: Global hunger continues to rise, new UN report says

News Article: Global hunger continues to rise, new UN report says

"If we are to achieve a world without hunger and malnutrition in all its forms by 2030, it is imperative that we accelerate and scale up actions to strengthen the resilience and adaptive capacity of food systems and people's livelihoods in response to climate variability and extremes," the leaders said.

Melting Arctic Could Rapidly Unlock 'Deep Carbon' Buried in Permafrost

Melting Arctic Could Rapidly Unlock 'Deep Carbon' Buried in Permafrost

Arctic lakes could release a vast reservoir of ancient carbon buried deep under the permanently frozen ground, or permafrost, thereby accelerating climate change.

Climate Change Could Drastically Change Ecosystems Around the World

Climate Change Could Drastically Change Ecosystems Around the World

The fossil records show that the world is very sensitive to temperature changes, which suggests that if fossil fuel emissions continue unabated, accelerated warming could lead to dramatic transformations in vegetation and ecosystems around the globe, the team wrote today (Aug. 30) in the journal Science.