42.3lbs which is still a lot to hold...especially one handed (veritasium clip)...but the reason

the hammer can't be lifted isn't due to weight but because it takes someone who is worthy

to wield it. It's a common misconception that Thor's hammer was forged from a dying star

when it was actually forged in one. But let's say it was made out of a dying star, specifically

the densest in the known Universe...a Neutron Star.

Once a massive star dies and goes supernova, the core may collapse to such a degree that

the protons and electrons smash together to form neutrons, giving us a celestial body

that can contain two times the mass of the Sun within an object that is only 12 miles

in diameter.

In Caleb Scharf's great book "Gravity's Engines" he mentions how a sugar cube sized amount

of Neutron Star material has the same mass as all of humanity. Taking the dimensions

of Thor's Hammer, and assuming it's made entirely out of that material, it would weigh over

10 quadrillion pounds

So now you have 4.6 trillion metric tons, about 97 million Titanics, condensed into

the size of an American Football. Let's say you and I are having a conversation, I'm holding

my hammer, and I accidentally drop it - BOOM! Being alive is no longer a thing you do. In

fact living is a thing that a good portion of humanity has stopped doing.

The Tsar Bomb, at 50 megatons, was the largest nuclear weapon ever detonated. Thor's Hammer

hitting the floor would be 1.3 MILLION times that. The closest comparison would be the

Chicxulub Asteroid that's thought to have wiped out the dinosaurs.

When the asteroid impacted, debris was ejected out of our atmosphere and upon re-entry, it

grew so hot that it glowed white and rained down globally, setting whatever could be lit

on fire...on fire. Earthquakes shook the ground, megatsunamis crashed into land masses, volcanos

erupted spraying ash into the air combining with the dust and debris to cover the surface

of the Earth and fill the atmosphere, blocking out the Sun.

Since the hammer is so insanely dense and covers such a small area, if you put it on

the ground it would drill through the Earth until hitting the core. So it's best not to

touch anything with Thor's Hammer, however it wouldn't even have to touch you to horribly

kill you.

Newton's Law of Gravity states that any two bodies with mass will attract each other,

and we happen to have an object with an incredible mass, squeezed into an incredibly dense package.

If you were 100ft away, you would be pulled towards it at almost 1100ft/sec^2, which is

close to the speed of sound and then things get really messy because parts of your body

closer to the hammer will experience a stronger gravitational pull than parts that are further

away and that difference near the hammer will be so dramatic that your body will ripped

apart by them also known as spaghettification. If Mjolnir were made of a dying star, it'd

be devastating, it would also make Thor one of the strongest super heroes ever. And before

we say, "but, Jake it's magic" remember what Thor said in the first film, "Your ancestors

called it magic...but you call it science. I come from a land where they are one and

the same." Or in the words of author Arthur C. Clarke "Any Sufficiently advanced technology

is indistinguishable from magic." And, as always, thanks for watching.