Cool Definition and 285 Threads

Trying to beat the heat of summer, a physics grad student went to the local toy store and purchased a child's plastic swimming pool. Upon returning home, he filled it with 200 liters of water at 25 C. Realizing that the water would probably not be cool enough, he threw ice cubes from his...

I came across this neat page and they are calling it a 'Zoomquilt'. It is just way too cool! Check it out! ENJOY! :biggrin: http://www.eviltree.de/zoomquilt/zoom.htm

"Dark-matter $100000 prize, Prove dark matter is needed and win!" 033 hits to date (http://www.darkmatterprize.net/ ) Personally I think a) he doesn't have $100k, and b) this might form the basis for an interesting set of 'extra credit' assignments for an undergraduate Physics/Astronomy...

cool reaction! Hi there, I am going to have to make a presentation for my English class next month, and since we are allowed to do about anything I was just looking around for some cool ideas and maybe some explination of what happened. Yes it is for my English work. I reaction must be...

Feel like you need a little humbling? This test is based on flash movies -- so you'll need a browser plug-in to run it - http://hjem.get2net.dk/mick.langhoff/flash/iq3.swf

I like them, they're kinky. And they bring out my eyes. :-p

How many people could fit into the largest office building in the world? Assume that everybody must be standing on the floor. :rolleyes: Very Cool Question but its kinda hard. I've looked up the largest office building which is the Pentagon! however i don't know the area of that place :S...

Ivan has this really cool book called Powers of Ten. I was wondering if it was online anywhere and this is what I found. It's a really cool site. http://www.wordwizz.com/pwrsof10.htm

Oh my gosh... I still can't get over how cool firefox is. Even coming from an old mozilla version. I had to use internet explorer on a friends laptop (forgot ma usb drive with firefox on it :mad: ) and UGH! And the...

Physics - "Cool" ? I was messing around with the rss thing in firefox and noticed this headline Physics goes in search of 'cool'

I have a peltier junction rated at 12V and when ran both sides become hot, what's wrong?

I'm about to do this project in which we will prepare and perform an experiment and then later tell the class about it. All this in about a week. I'm now trying to come up with some interesting experiment to do during this time. I'd really like some help on the subject. I'm looking for an...

I realize this has no factual value, but i thought it was a cool read nonetheless. http://www.museletter.com/archive/110.html One things I can agree with from this "letter", is that I am sure future generations will have nothing but scorn and contempt for those who live today.

Hi, I am typing up my topology homework and I want to make the cool looking t I see in the book. How do I accomplish this? Thanks!

This isn't much to offer as a thread, but this weather site -- http://www.wunderground.com -- has detailed info, and many things to explore. I found it because my wife asks me every morning what the weather is going to be so she can figure out what to wear to work. Around here there a lots of...

Hello. If the sun's core is several hundred million degrees (Fahrenheit), why is it that the surface is only a scant 11,000 degrees? I understand science is still confounded by the atmospheric heat of the sun (again, tens of millions of degrees in the corona), but I've been lead to believe...

just watch this its about the disclosure project... cool stuff about et's ufo's... http://www.netro.ca/disclosure/npccmenu.htm anyone know where i can get some info on antigravity?

We're asked how long would it take for the sun to cool down if nuclear energy production suddenly came to a hault This is the question asked in one of my lecture courses given that the radius of the sun is ~ 10^9m, mass ~ 10^30 kg, luminosity ~ 10^26, and G = 6.7x10^-11 Am i correct in...

http://www.softlab.ece.ntua.gr/~sivann/pub/KFee_Auto.mpg I really like the soothing effects this video has, pretty cool :approve:

This has to do with global warming, and a new solution to cooling buildings in Toronto. I read today where the near freezing water from the bottom of Lake Ontario will be channeled into large buildings in Toronto to cool them, thereby decreasing the need for traditional, air conditioning, and a...

Does anyone have any ideas on how to use a solar panel and its energy to create cool air.. or to cool say a copper coil.. Thanks in advance.. :approve: -John By the way AIM is strim302

I just finished taking this test. I scored 129 on the Ultimate IQ Test and 123 on the Verbal IQ Test. Go ahead and take it. It's kinda fun. http://www.highiqsociety.org/noflash/nonmembers/iqtests.htm Oh yes, and after you're done, please share your results with us. Be sure to specify the...

Will science and technology someday allow really highly developed ocean cities with an underwater sector with lights illuminating and stuff and an above water sector where you travel on say flying scooters. Fast speed trains could connect the cities. I guess right now the constraints are...

In my youth the local Sears store used an air hose blowing upward to suspend a beachball in the air, as an attention-getter for the part of the store where they sold vacuum cleaners. The ball jiggled around chaotically, but it stayed more-or-less above the snout of the air hose. Fast forward...

hey how do ya'll get cool icons under your name when you post?

I just watched a show called The Merchants Of Cool, about turning American kids into a source of profit, to the extent of shaping their beliefs and behaviours. While I think people have free will and they're stupid punks if they don't realize what's going on, it's true that the companies are...

Address:http://www.ebaumsworld.com/ I found this one to be more interesting than most because of counter rotation.

I have heard this argument all my life. Some say put hot water in an ice tray and it will freeze quicker than cool water. I don't follow the logic to that way of thinking. Do you? What is the right answer?

NEED HELP! How to cool air as much as possible Hello everybody, I have signed up to this site because I have a couple of questions I would like to get help on and I need people (yall) that have a better understanding of physics to help me out with a project... I am a car enthusiast and have...

This is my third year on math team. I'm now captain. Like 4 or 5 years before i joined, my school was a state champ, we switched to int. math, and now we're close to the bottom. I joined for two reasons 1. i like math, kinda a lot. 2. i thought it'd be absofreakinglutely hilarious. I'm not...

http://www.washingtonpost.com/wp-dyn/articles/A17434-2003Oct12.html

http://www.cnn.com/2003/TECH/ptech/09/15/videoscreen.air.reut/index.html I want one

Okay, this is kind of a contest. Name the something nano-sized you would like to see a picture of. I will consider all the submitted ideas, and scan the object, that would make the coolest picture, for all to see. Why am I doing this? Well, I want to have a cool SEM picture (that I...

What is the algorithm? No big mystery but a nice little demo for you to ponder. http://www.suite101.com/files/mysites/AskAlice/Clock.htm

Hello, I am asking about "cool lights" for a project I have boiling over on the back burner.:smile: I have heard about "cool lights" in the film industry. They are supposedly very cool... not hot. Even 50K lights used at night, to make it look like daylight, can be cool lights. The...