All the water in the world

I think this is such a very good teaching aid! It makes a clear point about our treasured, or not, global resources.

I've heard it said that the atmosphere, if represented on a globe would make plastic wrap look like it was thick. This image really struck home for me as to just how thin our resources are on this little blue planet.

I found this image on Dan Phiffer's site after someone posted it to the RASC-wpg list. The first thing I did was try and prove it out as reasonable, but the day wasn't long enough and the math heads on the list did it for us. Marvelous!



Left: All the water in the world (1.4087 billion cubic kilometres of it) including sea water, ice, lakes, rivers, ground water, clouds, etc. Right: All the air in the atmosphere (5140 trillion tonnes of it) gathered into a ball at sea-level density. Shown on the same scale as the Earth.

Edit:
Pictures that cast new light on our planet


UgoTrade - Archive for the ‘Virtual Worlds’ Category

Laminar Flow

I've just had the top of my head come off. Science is the best.
Laminar flow demo Thanks Brock.

wintah

Warnings
Steinbach - St. Adolphe - Dominion City - Vita - Richer
12:21 AM CST Wednesday 20 February 2008
Wind chill warning for
Steinbach - St. Adolphe - Dominion City - Vita - Richer continued

Extreme wind chill ending overnight.

This is a warning that extreme wind chill conditions are imminent or occurring in these regions. Monitor weather conditions..Listen for updated statements.



A very cold airmass blankets most of southern Manitoba. Combining this cold air with winds in the 15 to 20 km/h range will cause wind chills around minus 45. As winds abate by morning there will finally be a respite from the extreme wind chills.

At these extreme wind chill values frostbite on exposed skin may occur in less than 10 minutes.

Guide to Tomorrow's Eclipse Available!

RASC has made available a very nice little brochure for the lunar eclipse tomorrow. If you're around and dress warmly, the binos and the telescope will be out to enjoy the view. Check your clear sky clock for your local conditions.

video, biting politics and bike parts needed

First, I knew there was something going on with my cell phone. I am not quite sure what the ipod is up to, but it would not surprise me if it was headed down the same path.

On another note, I loved this little swing at the other team. A little vulgar maybe, but it's apropos given the subjects I think.
http://www.rollingstone.com/photos/gallery/17538811/dickheads_of_the_year

The rubbers have rotten off my brake levers on my bike. Any ideas? I've been on the prowel for a couple of days. What do you think of these options? Money is always tight for this type of thing.

http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEBTOX:IT&item=290206116037&_trksid=p3984.cTODAY.m238.lVI

http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEBTOX:IT&item=360022469067&_trksid=p3984.cTODAY.m238.lVI

I think this is my best bet.
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEBTOX:IT&item=370021852025&_trksid=p3984.cTODAY.m238.lVI

Missing the frostbit 5km race

Intervals are killers. A mile warm up. A minute running like you're possessed. Five minutes to try and calm the devil, repeat. This week I was a minute slower, but I'll use my chronograph screwing up or more likely me screwing it up as an excuse for being a minute slower overall this week. If I can recover, I'll race the Frostbite Festival 5km. If not I'll go cheer the crew on and enjoy the rich atmosphere at Festival du Voyageur. I hope they have the slide open! I have no idea how the insurance industry allows such wacky things. Oops. It's not on the weekend. I just spoiled my chances. :( It's slated to be run at 7:00pm tomorrow night. Insert swearing like a sailor.