Ask a physicist anything.

[Wiccan_Child]

Whats the lightest object you can drop from, say, the Empire State Building, and still make a dent in the pavement?

Assuming we're on the roof (and not the top of the spire), we'd be 443.2m above the ground. Ignoring air resistance for the moment, an object dropped from that height would be travelling at 9.51m s[sup]-1[/sup]. Thus, when the object hits the ground, it would have an energy density of about 45 J kg[sup]-1[/sup]. That's quite a lot.

So it would have to be very light indeed not to make any (noticeable) dent in the pavement. But, if it's that light, air resistance becomes important. So much so that it would likely not fall at all, but instead by buffeted about by the wind.

 

[Chesterton]

Assuming we're on the roof (and not the top of the spire), we'd be 443.2m above the ground. Ignoring air resistance for the moment, an object dropped from that height would be travelling at 9.51m s[sup]-1[/sup]. Thus, when the object hits the ground, it would have an energy density of about 45 J kg[sup]-1[/sup]. That's quite a lot.

So it would have to be very light indeed not to make any (noticeable) dent in the pavement. But, if it's that light, air resistance becomes important. So much so that it would likely not fall at all, but instead by buffeted about by the wind.

You have to take into account that New York has pretty tough streets.

 

[Cabal]

You have to take into account that New York has pretty tough streets.

And New Yorkers have very tough skulls.

 

[Cabal]

Why is the one three posts above made of triangles?

The builder was hungry and thinking of the sandwiches in his lunchbox.

 

[TerranceL]

Dammit, Escher, the dice are falling up the stairs again!

Hahahahaha!!!

 

[TerranceL]

WC, please explain to me Schrodinger's cat.

Hahaha, I asked that one earlier. Glad to see I wasn't the only one who didn't get it.

 

[TerranceL]

Can I hire you to work for our city? You ask good questions!

LOL.

Avvet you know as well as I do that people in the government who ask good questions soon are either unemployed or promoted out of the areas they are asking questions about.

 

[TerranceL]

In Bermuda, of course .

Interestingly, the Bermuda Triangle is no more dangerous than anywhere else in the world: the rate of disasters is not above average, despite what popular authors would have you believe.

Um, are you trying to tell me that the History Channel has lied to me?

 

[AV1611VET]

LOL.

Avvet you know as well as I do that people in the government who ask good questions soon are either unemployed or promoted out of the areas they are asking questions about.

LOL --- got me on that one!

 

[catzrfluffy]

The area of the Triangle varies by author. Bermuda Triangle - Wikipedia, the free encyclopedia



There's a rectangle in there somewhere...

 

[Cabal]

The area of the Triangle varies by author. Bermuda Triangle - Wikipedia, the free encyclopedia



There's a rectangle in there somewhere...

I quite like the red "Bermuda deformed-trapezoid."

 

[catzrfluffy]

A man is found dead in an alley lying in a red pool with a tiny stick near his head.

How did he die?

 

[Belk]

A man is found dead in an alley lying in a red pool with a tiny stick near his head.

How did he die?

Lack of oxygen to the brain.

 

[catzrfluffy]

Lack of oxygen to the brain.

nope

 

[Wiccan_Child]

A man is found dead in an alley lying in a red pool with a tiny stick near his head.

How did he die?

The red pool is ink, the stick is a pen, and... he died of ink poisoning?

 

[catzrfluffy]

The red pool is ink, the stick is a pen, and... he died of ink poisoning?

Good lateral thinking but

nope​

Ink poisoning is rare, you'd need to swallow more than an ounce to need treatment.​

 

[Doveaman]

A man is found dead in an alley lying in a red pool with a tiny stick near his head.

How did he die?

He was beaten to death with a red pool-stick.

Or he hit his head on a stick while diving into a red pool.

 

[Wiccan_Child]

Good lateral thinking but

nope​

Ink poisoning is rare, you'd need to swallow more than an ounce to need treatment.​

I thought it might be hard to get ink poisoning, but you never know!

Anyway, I've got it.

He was lying in a red pool reactor! The little red stick was a fuel rod (or a control rod). Though those rods are generally quite large...

 

[AV1611VET]

A man is found dead in an alley lying in a red pool with a tiny stick near his head.

How did he die?

He tried to pole-vault to the roof and missed?

 

[Doveaman]

He tried to pole-vault to the roof and missed?

Don't you mean pool-vault?