Tesla Cybertruck Vs. a Ford F-150: It's All About Friction

Tesla Cybertruck Vs. a Ford F-150: It's All About Friction

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.

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.

Fly Me to the Moon … With Elephants!

Fly Me to the Moon … With Elephants!

I recently ran across an animation showing a Saturn V rocket during liftoff, but with a small modification.Video: Rhett AllainBefore it was launched, the metal ball was at rest and thus had a momentum of zero.

Physicists Get Close to Knowing the Mass of the Neutrino

Physicists Get Close to Knowing the Mass of the Neutrino

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.

Tips for Puking in Microgravity and Staying Healthy in Space

Tips for Puking in Microgravity and Staying Healthy in Space

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.

Extreme-Risk Laws Reduce Gun Violence

Extreme-Risk Laws Reduce Gun Violence

But in this case, the threats made the news because local law enforcement officials took preventative action, including obtaining a court order that allowed them to temporarily remove 12 guns from the man's possession.

Mass Graves in Russia Tell the Grim Story of Mongol Invasion

Mass Graves in Russia Tell the Grim Story of Mongol Invasion

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.

Mass Shootings May Be Contagious. Can We Contain Them?

Mass Shootings May Be Contagious. Can We Contain Them?

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.

The Twisty Physics of Simone Biles' Historic Triple-Double

The Twisty Physics of Simone Biles' Historic Triple-Double

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.

The Surprisingly Cozy Truths of Sleeping in Space

The Surprisingly Cozy Truths of Sleeping in Space

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.

Fact-Check the Physics of Captain America Hammering Thanos

Fact-Check the Physics of Captain America Hammering Thanos

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.

Cloudflare Ditches 8chan. What Happens Now?

Cloudflare Ditches 8chan. What Happens Now?

What Happens Now. Cloudflare CEO Matthew Prince announced Sunday that his company would stop providing protection for internet for 8chan, after a series of mass shooting manifestos were posted on the forum.

An Electric Pickup Truck Really Could Pull a Freight Train—Here's How

An Electric Pickup Truck Really Could Pull a Freight Train—Here's How

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.

Where Do Supermassive Black Holes Come From?

Where Do Supermassive Black Holes Come From?

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.

Former NASA Astronaut Mike Massimino’s Guide to Eating in Space

Former NASA Astronaut Mike Massimino’s Guide to Eating in Space

There’s an entire lab at the Johnson Space Center dedicated to the culinary arts, where NASA chefs—ahem, food tech­nologists —spend their days designing meals that strike the right balance between taste and nutrition.

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 Basic Physics of the Kilogram's Fancy New Definition

The Basic Physics of the Kilogram's Fancy New Definition

Yes, the ΔE is the change in energy levels, f is the jiggle-frequency and h is Planck's constant. The easiest way to perturb a system to get the electron to change energy levels is to use light.

There’s a Plague in Our Oceans. Can Ecosystem Services Help?

There’s a Plague in Our Oceans. Can Ecosystem Services Help?

Those of us who study non-human diseases are worried that mass mortality caused by multi-host pathogens is becoming a common and recurrent event, threatening biodiversity in both terrestrial and marine environments.

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.

Two Unusual Galaxies Shake Up the Dark Matter Debate, Again

Two Unusual Galaxies Shake Up the Dark Matter Debate, Again

In March, a team of astronomers led by Yale professor Pieter van Dokkum and his graduate student Shany Danieli published two papers, one confirming the existence of a galaxy that appears to have almost no dark matter and the other announcing the discovery of a second galaxy of this type.

The Body Pullers of Syria

The Body Pullers of Syria

Under a patch of trees nearby, a small campfire crackles inside the remains of a clothes dryer.“Who needs biscuits?” a young man with steely eyes says to a group of roughly a dozen men gathered around the fire.

Lego’s Break Dancing Robot, Best Email Apps, and More News

Lego’s Break Dancing Robot, Best Email Apps, and More News

Lego has introduced a new coding and robotics set called "Spike Prime" that will help kids gain valuable confidence in team building, STEM skills, and the power of persistence. The sets come with lesson plans for teachers, and kids can build anything from a breakdancing robot to a grasshopper-like racing module.

Simple Experiments Show How Motion Is Equivalent to Heat

Simple Experiments Show How Motion Is Equivalent to Heat

The change in thermal energy of an object depends on three things: the object's mass, the change in temperature, and the specific heat capacity (which depends on the material). In order to calculate the change in thermal energy, I need the specific heat capacity for the two materials (water and copper).

You Can Play With Escape Velocity—Without Leaving the Planet

You Can Play With Escape Velocity—Without Leaving the Planet

In this case, the force depends on the mass of the ball (m) and the local gravitational field (g) with a value of around 9.8 Newtons per kilogram.

How Many Times Do You Have to Slap a Chicken to Cook It?

How Many Times Do You Have to Slap a Chicken to Cook It?

Since I know the heat capacity of water, I can use that decrease in temperature of the water to calculate the increase in thermal energy of the turkey. Conservation of Energy If I assume chicken is similar to turkey, I can calculate the change in thermal energy to cook it.

The Way Superman Picks Up a Building Is a Physics Travesty

The Way Superman Picks Up a Building Is a Physics Travesty

Rhett Allain Let's start with a rough estimate of the pressure between Superman's hands and the building. Now that I have the force that Superman pushes up on the building, I can also calculate the pressure.

The Formidable Physics of Mysterio in 'Spider-Man: Far From Home'

The Formidable Physics of Mysterio in 'Spider-Man: Far From Home'

If I use a gravitational field of 10 Newtons per kilogram (it's actually about 9.8 N/kg), the change in potential energy would be 10 Joules. So how do you calculate the mass and height for the change in gravitational potential energy?

The Sensible Math of Knocking Over Absurdly Large Dominoes

The Sensible Math of Knocking Over Absurdly Large Dominoes

Since multiplication can be tedious after a while, let's make a computer program to calculate the height of the 29th domino assuming the starting domino is 5 millimeters tall. Here is a similar program that calculates the height of dominoes needed to get one big enough to possibly crush a car.

The Best of Breastfeeding Tech in 2019: Medela, Willow, Lilu

The Best of Breastfeeding Tech in 2019: Medela, Willow, Lilu

The Best of the Breast: Pumping Tech Is Better than Ever Amy Lombard The big buzz in "baby tech"—the cottage industry of gadgets to aid fertility, pregnancy, and the first six months of infancy—looks like a simple black bra.

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.