Things you did not know
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The fastest object ever made by humans is the Heilos 2 Solar Probe. It travelled 252,792km/h (70,220 meters/s) on record-set. The Solar probe is still in orbit around the sun today, ever so slightly inside the orbit of Mercury, thereby setting the record to the closest known obejct to our sun.
Thats actually the most applicable to glass you can get except for specialists. Polymer physicists know more about this than anyone else, but again... what is that second word...physics.... hmmmm... And if you really look into it.... phase transitions are thermodynamic properties... thermo is a physics topic. (although chemists try to figure it out with varying levels of success...)cleverlymadeup said:funny how i learned about the different states of matter in chemistry class not physicsManta173 said:
and btw if you look quickly at wikipedia, http://en.wikipedia.org/wiki/Glass with many citations, it's stated it's a liquid
i'd go track down the pyscho clown cause he has a doctorate in polymer physics, which deals mostly with plastics not glass and ask him but he's a bit busy opening his store
A platypus is the only mammal that has venom... (the males have spurs on their back legs)
It is also one of only 2 egg laying mammals.
The opossum is the only marsupial outside of Australia.
Cats male genitalia have spines... hence the noise cats make when... making babies... (gotta love PBS)
Polar bears and grizzly bears are the same species. They are different sub-species of brown bear.
Anacondas are the only creature known to consider humans as a regular part of their diet. (supposedly everything else that eats us doesn't do it by choice... just if the opportunity arises)
It is also one of only 2 egg laying mammals.
The opossum is the only marsupial outside of Australia.
Cats male genitalia have spines... hence the noise cats make when... making babies... (gotta love PBS)
Polar bears and grizzly bears are the same species. They are different sub-species of brown bear.
Anacondas are the only creature known to consider humans as a regular part of their diet. (supposedly everything else that eats us doesn't do it by choice... just if the opportunity arises)
I did metallurgy and material engineering at university, and I know the answer to the 'What is glass?' question.
And I'm not telling.
And I'm not telling.
funny part is glass isn't a polymer, stuff such as plastics, at least that's what my friend who has a doctorate in polymer physics did a lot of work with and most of the basic research you can do on polymer science.Manta173 said:
even that glass article on wikipedia said "not polymer science"
ancient ppl had a system of measurement that accurately measured the circumference of the earth better than we could until very recently
I don't see anywhere in my post that says glass is a polymer.... and as I mentioned before I have two masters degrees on polymers... I've done 5 years worth of research on phase transitions in polymers... so I kinda know this stuff. The reason why it mentions that in wikipedia is because polymer science has a lot to do with glass transitions... not real glass just the transition of a polymeric material from highly mobile segments to low mobility (think crankshaft motion). Gooey to pseudo-solid basically.cleverlymadeup said:
I'd like to point out that Thermodynamics is just maths with a little bit of physical intuition; anyone with a grasp of differential equations can derive it (if you mean stat thermo, then that's a completely different kettle of fish, but is still well understood by Chemists at least as well as by physicists).Manta173 said:
Whilst physicists may claim to know everything (or at least have theories), it is Chemists that deal with real world problems. Unfortunately, the movement of glass does not happen on any sort of time scale chemists deal with; I have to say the best people to ask would probably be geologists with the sort of timescales that are required(!)
Oh, and to the poster who said that 'Solids have a regular ordered structure', that's the definition of a crystal not a solid, solids may be amorphous.
I'm pretty sure this is true about the bumble bee (the big fluffy ones), and so that is my contribution.LOOY said:
Ok my turn
-Coca-Cola would be green if colouring weren?t added to it.
-Earth is the only planet not named after a god.
-King Henry VIII slept with a gigantic axe.
-In 1843, a Parisian street mime got stuck in his imaginary box and consequently died of starvation.
-Moths are unable to fly during an earthquake.
-"Hello Kitty" began as part of a covert propaganda campaign originally proposed by Prime Minister Tojo during World War II.
and my favourite
Charlie Chaplin once won third prize in a Charlie Chaplin look-alike contest.
-Coca-Cola would be green if colouring weren?t added to it.
-Earth is the only planet not named after a god.
-King Henry VIII slept with a gigantic axe.
-In 1843, a Parisian street mime got stuck in his imaginary box and consequently died of starvation.
-Moths are unable to fly during an earthquake.
-"Hello Kitty" began as part of a covert propaganda campaign originally proposed by Prime Minister Tojo during World War II.
and my favourite
Charlie Chaplin once won third prize in a Charlie Chaplin look-alike contest.
Technically, bumble bees can fly. A lot of people believe they can't because their muscles (or what they use in place of them) shouldn't have enough strength to lift them. However, when put through tests by scientists/biologists it was found that they create small eddies in the air which help them stay afloat via pressure differences.The_woods_man said:
Also, this is 100 post. Hooray me!
