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• #20077
Twenty one quid to look at a clopper?
You can see loads of that down Pudsey bus station for nowt. Fat fannies in see-through leggings.
I'm off for some peeky toe.
It reminds me of one of my boss' client's Vegas bills that he crassly posted to FB. The two things everyone comments on are the service charge ($29,581.20) and the cost of a Heineken ($10 each) rather than the DP, etc.
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• #20078
Most of it must have been lost in the atmosphere, no? Since something that big would fuck up a huge area I thought.
The crater size is proportional to momentum not meteor size. A small object can have enough momentum to make a huge crater.
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• #20079
Then surely a 10 ton object at 50 bagillion kph would still make a big hole??
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• #20080
One that size would obliterate a much larger area, like a whole continent or something.
You asked how something that big wouldn't cause more damage. Something the size of that crater impacting the earth would cause a lot more damage, but the object which caused it was much smaller than the crater it created.
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• #20081
It reminds me of one of my boss' client's Vegas bills that he crassly posted to FB. The two things everyone comments on are the service charge ($29,581.20) and the cost of a Heineken ($10 each) rather than the DP, etc.
Sorry, had to ask, DP is Double Penguin?
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• #20082
One that size would obliterate a much larger area, like a whole continent or something.
You asked how something that big wouldn't cause more damage. Something the size of that crater impacting the earth would cause a lot more damage, but the object which caused it was much smaller than the crater it created.
I don't get what you are saying. If the object was big and it hit fast then it would destroy us all or whatever. As it didn't destroy us all, the object must have been smaller. If reports are 10 tonnes, then most of this must have been lost before impact. If the speed was 50,000kph then again most of this must have been lost before impact.
So what I said, along the lines of "Most of it must have been lost in the atmosphere, no? Since something that big would fuck up a huge area I thought." is what you are saying.
BTW: I didn't say anything about the size of the crater. I am talking about dicki's post about the meteor.
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• #20083
OK sorry, I thought when you said "something that big" you were referring to the size of the crater. I didn't know you were referring to the 10 tonne figure. I agree that sounds ridiculous.
My mistake.
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• #20084
OK sorry, I thought when you said "something that big" you were referring to the size of the crater. I didn't know you were referring to the 10 tonne figure. I agree that sounds ridiculous.
My mistake.
now leave hippy out of this
there's no need for nastiness on a friday afternoon -
• #20085
OK sorry, I thought when you said "something that big" you were referring to the size of the crater. I didn't know you were referring to the 10 tonne figure. I agree that sounds ridiculous.
My mistake.Groovy. I've seen mahoosive craters that were reportedly caused by meteors the size of my head (cue fat jokes). Simply because of the speed they impacted they can shift a lot of Earth.
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• #20086
kinetic
kinetic energy (KE) of an object.
where m = mass of object
v = speed of object -
• #20088
e=mc2
as einstein calculated for particles travelling at the speed of light
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• #20089
The Russian Academy of Sciences estimates that the meteor weighed about 10 tonnes and entered the Earth's atmosphere at a speed of at least 54,000 km/h (33,000mph).
Fuck thats a lot of energy
54,000 km/h / 60x60 s/h = 15 km/s
KE = 1/2 m v^2 = 1,125,000,000,000 J, equivalent to 269 Tonnes of TNT in the usual measure of explosions. i.e. only a little more than a quarter kiloton, about equal the smallest nuke in the US arsenal.
Interestingly, would have got upto 11.2 km/s of its velocity from falling into the Earth's gravitational field, so would have been wandering through space at less than 4 km/s - too slow for it to have come from very far out in the solar system.
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• #20090
Most of it must have been lost in the atmosphere, no?
Yes, i think so.
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• #20091
doesn't terminal velocity have something to say here
or is that just for small human shaped objectssurely it was only doing 120mph when it hit the ground ?
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• #20092
kinetic
kinetic energy (KE) of an object.
where m = mass of object
v = speed of object
The object is travelling at silly speeds though:Then surely a 10 ton object at [highlight]50 bagillion kph[/highlight] would still make a big hole??
So Newtonian physics are no longer accurate.
Assuming 50 bagillion kph is still below light speed:
Your 10 ton object is going to obliterate the planet.
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• #20093
e=mc2
as einstein calculated for particles travelling at the speed of light
54000km/h is only 0.005% c, so that doesn't really come into it.
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• #20094
Your 10 ton object is going to obliterate the planet.
dibs
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• #20095
i guess einstein was looking at quantum particles for that equation ? wasn't he ?
or light waves ? or are they one and the same ?
who knows ? .... that dude off the big bang theory possibly but certainly not me.
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• #20096
too slow for it to have come from very far out in the solar system.
Maybe it was knocked out of the Kuiper Belt? -
• #20097
doesn't terminal velocity have something to say here
or is that just for small human shaped objectssurely it was only doing 120mph when it hit the ground ?
more or less. All the light and sound was it fighting hard against terminal velocity. Once it had lost, the exact terminal velocity of each surviving chunk would depend on its size, shape and density, so maybe faster than 120mph but almost certainly subsonic.
I think meteors that make it to the ground before terminal velocity takes over (either by being bigger or faster or coming straight down) are the ones that make good craters.
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• #20098
that dude off the big bang theory possibly but certainly not me.
So close to negging for bringing that show up...
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• #20099
i guess einstein was looking at quantum particles for that equation ? wasn't he ?
no, it refers to all matter.
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• #20100
i guess the starting speed of the rock as it enters the atmosphere is higher than felix baumgartner's
earth has a lot of slowing down to do
Most of it must have been lost in the atmosphere, no? Since something that big would fuck up a huge area I thought.