/sci/ - Science & Math

It really did explode though. Meteors of this size typically do.

>>5534243
You are. Learn to be less anal.

>>5534248

I thought this was the science board.

Or, wait, does it mean this just a 'science' photography board where you look at pretty pictures of space and talk about high school math problems?

Science is the EPITOME of anal.

Fuck off.

>>5534254
he told
you angry
lose/lose

>>5534247
It did, but that boom was just the shock wave, not the meteor breaking up.

>>5534247
Fucking serious? The loud "crack" was from the shockwave, not the explosion you idiot.

>>5534243
Who gives a fuck? Journalists don't work in science.

>>5534306
and shockwave came from a alien farting in asteroid? right?

>>5534306
Do not call other posters idiots.
I think that he may be right, it really is an explosion.
This is similar to the Tunguska event (but on a smaller scale.)
Here is one eyewitness report of the Tunguska event.
"At breakfast time I was sitting by the house at Vanavara Trading Post [65 kilometres/40 miles south of the explosion], facing north. [...] I suddenly saw that directly to the north, over Onkoul's Tunguska Road, the sky split in two and fire appeared high and wide over the forest [as Semenov showed, about 50 degrees up—expedition note]. The split in the sky grew larger, and the entire northern side was covered with fire. At that moment I became so hot that I couldn't bear it, as if my shirt was on fire; from the northern side, where the fire was, came strong heat. I wanted to tear off my shirt and throw it down, but then the sky shut closed, and a strong thump sounded, and I was thrown a few metres. I lost my senses for a moment, but then my wife ran out and led me to the house. After that such noise came, as if rocks were falling or cannons were firing, the earth shook, and when I was on the ground, I pressed my head down, fearing rocks would smash it. When the sky opened up, hot wind raced between the houses, like from cannons, which left traces in the ground like pathways, and it damaged some crops. Later we saw that many windows were shattered, and in the barn a part of the iron lock snapped."

And notice how they are talking about intense heat, as well as being blasted back. A shockwave could explain the force, but not the intense heat they were experiencing.
"Trees at the epicentre were charred and stripped of their branches and bark, but were left standing, which would lead to them being coined "telegraph poles"."

>>5534380
They found radioactivity on the ground in Tunguska.

It was indeed a nuclear explosion.

but caused by who or what?

>>5534776

no. they did not find any radiation greatly diverging from the mean.

It was a comet. Don't be so gullible.

>>5534243 >Do people really not grasp the sheer force of a hypersonic shock wave?

Do you know anything about hypersonic shock waves?

>>5534776

Any explosion that is large enough will have cause radiation

>>5534793

... technically. But not ionizing radiation. just thermal.

Expeditions sent to the area in the 1950s and 1960s found microscopic glass spheres in siftings of the soil. Chemical analysis showed that the spheres contained high proportions of nickel and iridium, which are found in high concentrations in meteorites, and indicated that they were of extraterrestrial origin. Expeditions led by Gennady Plekhanov found no elevated levels of radiation, which might have been expected if the detonation were nuclear in nature."

>>5534776
Citation?
There seems to be a lot of conspiracy theorys about this, suggesting that it was not really a meteoroid, and was either the Russians doing a secret nuclear test, or an alien spaceship, and things like that. But as far as I can tell from the evidence, all of these strange theories are false, and there is eyewitness testimony of a large fireball moving through the sky before the event. Indicating that it is indeed a large meteoroid.

"The first expedition for which records have survived arrived at the scene almost two decades after the event. In 1921, The Russian mineralogist Leonid Kulik, visiting the Podkamennaya Tunguska River basin as part of a survey for the Soviet Academy of Sciences, deduced from local accounts that the explosion had been caused by a giant meteorite impact. He persuaded the Soviet government to fund an expedition to the Tunguska region, based on the prospect of meteoric iron that could be salvaged to aid Soviet industry.
Kulik's expedition reached the site in 1927. To their surprise, no crater was to be found. There was instead a region of scorched trees about 50 kilometres across. A few near ground zero were still strangely standing upright, their branches and bark stripped off. Those further away had been knocked down in a direction away from the center.
"During the next ten years, there were three more expeditions to the area. Kulik found a little "pothole" bog that he thought might be the crater, but after a laborious exercise in draining the bog, he found there were old stumps on the bottom, ruling out the possibility that it was a crater. In 1938, Kulik managed to arrange for an aerial photographic survey of the area, which revealed that the event had knocked over trees in a huge butterfly-shaped pattern. Despite the large amount of devastation, there was no crater to be seen...

Yes the meteorite exploded, but it did so 30-50 km above the ground. However if it had exploded on the ground, it would have done significantly more damage. Maybe that's why OP is confused.

>>5534802
>citation needed

>>5534800

INTERDASTING

>>5534815
http://www.crystalinks.com/tunguskaevent.html

a little bit, but derps are going to derp

>>5534811
I think it was almost 100km.
The shockwave arrived 5min later.

>>5534787
do you?

>>5534829
There's that furry avatar fag again.

>>5535159

????

I just like the comic.

>>5534790
A comet without crater? Yeah right. GO back to sleep.

They found radiation: http://www.themystica.com/mystica/articles/n/nuclear_tunguska.html
>The trees, without exception, radiated out for many miles from Ground Zero.

>>5535187
Yeah, and that's why he called you a fag.