Counterpoint:

Aesthetics is 'a set of principles concerned with the nature and appreciation of beauty, esp. in art.' It's typically undervalued in a capitalist society and a lot of times never goes beyond a niche market, which is odd since so many decry the 'McDonaldization' of society (and why diss McDonald's?--they exist precisely because they DO give a sh-t about their customers).

Shaving with a straight razor can be considered an art form. It's also an experience unto itself to be shaved by a pro with such an implement. You can buy machines that heat up lather at home but they never quite do it as well as the one at the shop. Also, the act of sitting prone in a chair while a stranger holds a blade to your throat is quite an impressive act of trust. There could be all the barber licenses in the world on the wall as well as a cop holding a gun on the barber...and he can still cut your throat before he's shot.

I dislike the trend to ban masculinity from society. Women are many things but (thank ye gods) they are not men. The idea of the 'man cave' is an insult when the entire home used to be a man's castle.

Basically, the steel rolling process starts with a huge slab of steel about 20-30 feet long, which is heated up to a few hundred degrees in a giant oven. Once it exits the oven it's sent on a conveyor through a series of rollers with smaller and smaller gaps between them, going from around 200mm tall to 2mm tall, o More..ver a distance of a few kilometers. As a side effect from this, the slab gets extremely long (larger plants can end up with sheets over 200m long), and moves extremely quickly.

The reason it has to move so quickly is that the compression elongates it, so the exiting material has to be moving faster than the entering material, or you'll get a nasty 400 degree, 20 ton traffic jam.

The conveyor it travels on is essentially a series of rollers spaced around 1-2 feet apart, and when it's rocketing along like in the video, the leading end will bounce slightly as it hits each roller. On very rare occasions that leading end will bounce high enough to catch on something, or even curl over of its own accord, causing what you see in the video, where it looks like the sheet has hit the front end of the roller.

>> ^dannym3141:

>> ^jwray:
>> ^dannym3141:
>> ^jwray:
Also, the gravitational energy released by the collapse could put a shitload more heat into things that were already really hot.

I, for one, am very unsure on this idea that the gravitational potential energy of bricks falling a maximum of 800m (the very very top bricks only) are a source of major internal heating in a building collapse.
Random thought experiment - if i dropped 50 kg of wood from 800m, that's a lot of gravitational potential energy. Would it set on fire, then, on impact with the ground?


17.4 degrees C for iron dropped 800m in a vacuum. More or less for other things depending on their specific heat capacity and the exact configuration of the collapse. Things that get a lot of shit falling on top of them may get a 10-100 times larger share of the energy than the average depending on the parameters of all the materials (if you drop a hard thing onto mush, the mush absorbs most of the impact).
Also, imstellar, 99.9% of all legitimate scientists don't support the "WTC was an inside job done with thermite" hypothesis. For one, it violates occam's razor. The planes alone were enough. A lot of people actually DIED on those planes and were never heard from again. Plus there is VIDEO of the planes crashing into the buildings.

I find your answer lacking. 17.4 degrees C for what amount of iron dropped in a vacuum? Saying 17.4 degrees C "for iron" is tantamount to telling me you looked it up on wikipedia. As a statement of fact, it makes no sense! It depends on so many things - shape, the amount, what it lands on.. I have a suspicion you have an idea of what you're talking about, but you'll need to do better than that kind of comment.
And don't forget that only the very top bits are falling 800 m, it falls less and less the further down you go, and the fall is so complex, collisions taking place, things landing on other things, bouncing off things, slowed down, sped up, who knows what's going on in the middle?
It's still looking suspicious that your statement that the GPE of the falling shit will somehow shoot huge temperatures up to even huger temperatures.


You'll have troubles looking up temperature in any scientific literature because the real measure that matters in energy. Temperature is just a measure of how much energy a particular object is storing in the form of heat. Jwray's very valid point is simply that a skyscraper is storing an utterly enormous amount of energy in the form of gravity. If even a small portion of that energy is converted to heat, which a collapse is guaranteed to do, it will raise temperatures of whatever material absorbs that heat. If it is concentrated enough it could melt whatever is heated up. The point is simply that the collapse turned more than enough energy into the form of heat to melt a good mass of steel, the question is only how that energy was distributed through the wreckage. Odds are in a random collapse it will be distributed fairly broadly, meaning less temperature increase per mass, but the already very hot steel may not have needed that much either.

All said, it is absolutely hard to say. Meaning it's hard to rule out the collapse and simmering fires within the wreckage couldn't have melted some steel over time. Hard say that would be expected either. The more complex an event is the harder it is to predict.

Looks like some sort of flexing of the metal as it cools or heats up, flexing and popping the briquettes into the air - At least that's what I thought but on review, I'm not sure what causes it to happen - that kaboom looks way to big to be flexed metal.

^ Obviously you need water deep enough to cover the noodles, regardless of the width of the vessel, but ideally the vessel shouldn't be any wider than necessary because you'd be wasting energy heating up additional water and diluting the flavor.

The ramen ingredients are actually pretty harmless if you look them up.

Worse is all the uncooked chicken in frozen meals which doesn't get cooked properly in the microwave.

>> ^jwray:

Why doesn't the random quantum movement of these particles cause a system near absolute zero to heat up? If these random quantum flucuations cause the electron to bump into another particle, imparting it with momentum, does that momentum not "count" as heat? Weird.


I think you're assuming absolute zero is possible. That could be one of the reasons that reaching absolute zero is, in fact, not possible.

These videos are awesome.

Why doesn't the random quantum movement of these particles cause a system near absolute zero to heat up? If these random quantum flucuations cause the electron to bump into another particle, imparting it with momentum, does that momentum not "count" as heat? Weird.

The big difference is that the space shuttle has to travel really really fast (more than 17000 mph) "sideways" to stay in orbit while a balloon goes almost straight up. When coming back down a balloon-doodad can just fall straight down with a little parachute because it never reaches any significant speed.
A space shuttle has to slow down a lot and they do that by diving into the atmosphere belly-first, compressing the air in front of it. This heats up the air and slows down the shuttle.

>> ^BoneRemake:

So my major thought just now was the atmosphere..
although I will go and learn for myself, right now I wonder why they did not need head shields or anything like that.
Just where oh where does the atmosphere begin exactly/end exactly, Why does a space craft from NASA need some ceramic plating while this lil doodad needed naught but shaved expanding foam.

Almost all energy consumed by households is avoidable waste:
* think about the way you fry eggs. 99% of the heat from the burner is going into the air, not into the eggs. This should be solved by using small device that is well insulated on all sides and has an internal heating coil.
* Ovens have a high heat capacity and shitty insulation. More energy is wasted on heating up the oven itself than actually goes into the food. This could be solved by lining the inside of the oven with silica aerogel instead of metal. If an oven is properly insulated it will not feel very warm to the touch on the outside, even after being on for an hour.
* Most of your heating and cooling energy leaks out the windows -- if their inside surface feels significantly above or below ambient during extreme weather, your heating and cooling energy is being wasted and hemorrhaging out the windows. It would literally save energy to have a webcam on the roof and display that image on an LCD inside instead of having windows, if you live in a climate with extreme temperatures (especially in cold climates, as the energy used for the LCD would contribute to heating the house). All ventilation needs can be accomplished through a small portal with a fan (and a heat exchanger, of course).
* Hot water is produced very wastefully by just dumping energy into it instead of using a thermodynamic cycle to transfer heat and produce something cold as a byproduct. Hot water could be co-produced with cold water for AC / Refrigeration much more efficiently than doing them all separately.
* Hot water goes down the drain. This should at least go through a heat exchanger, which would dramatically lessen the amount of work that has to be done to heat up new hot water. A 7 Liter per minute showerhead putting water 30 degrees F above ambient down the drain is wasting over 8135 watts as long as it is running. However, I don't know of any houses yet designed with a heat exchanger between the shower drain water and the intake of the water heater.
* Fluorescent lights. Duh. Incandescent bulbs should be banned.
* Freezers built with the door on the top will waste much less energy to the convection of air when opened, for obvious reasons.

Here ends the lifestyle-neutral list of suggestions. The following would involve sacrificing something:

* Reduce excessive lighting -- if people wouldn't fuck up their retinas by driving just after sunrise or just before sunset, or seeing specular reflections of the sun on shiny cars and buildings outdoors, they wouldn't need such bright lights indoors. A 1 watt LED is plenty for reading. Sunlight could be used in the daytime instead of artificial lights.

>> ^charliem:

This is where a leafblower comes in handy.


A leafblower that shoots air heated up to 700C or 1300F for you americans

Maybe it was the heavy winter clothes and/or the camera but they all looked a bit rotund. I can just see them back at their hideout heating up scoops full of icecream with a cigarette lighter, then using a syringe to inject the melted remains straight into their veins. 'Hells yeah! That's some straight out LDL muthafucka'

This video has been declared a duplicate by the original submitter; transferring votes to the original video and killing this dupe - dupeof declared by Zifnab.

This video has been declared a duplicate by the original submitter; transferring votes to the original video and killing this dupe - dupeof declared by Zifnab.

Didn't show up in my search, too close...

*dupeof=http://videosift.com/video/ONN-Iron-Man-2-Buzz-Heats-Up

*dupeof=http://videosift.com/video/ONN-Iron-Man-2-Buzz-Heats-Up

>> ^GeeSussFreeK:

Though, fluids don't compress so they don't behave exactly the same, but they are rather similar.

liquids don't compress, gases do. Liquids and gases are fluids in different phases. If you compress a gas enough, or you cool it down enough, most of them will become liquid. And if you lower the pressure or heat up a liquid enough, liquids will turn into a gas! But for the most part their dynamics (the way they move) can be quantified by the same set of rules.