Techsurvivors

Archives => 2003 => Topic started by: sandbox on October 07, 2003, 03:10:50 AM

Title: Powers of Ten
Post by: sandbox on October 07, 2003, 03:10:50 AM

View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons.
 

Once the applet has completely downloaded, a set of the arrows will appear that allow the user to increase or decrease the view magnitude in Manual mode. Click on the Auto button to return to the Automatic mode.

Notice how each picture is actually an image of something that is 10 times bigger or smaller than the one preceding or following it. The number that appears on the lower right just below each image is the size of the object in the picture. On the lower left is the same number written in powers of ten, or exponential notation. Exponential notation is a convenient way for scientists to write very large or very small numbers. For example, compare the size of the Earth to the size of a plant cell, which is a trillion times smaller:

Earth = 12.76 x 10+6 = 12,760,000 meters wide
(12.76 million meters)

Plant Cell = 12.76 x 10-6 = 0.00001276 meters wide
(12.76 millionths of a meter)

Welcome to the Molecular Expressions B)
http://micro.magnet.fsu.edu/index.html

Title: Powers of Ten
Post by: kelly on October 07, 2003, 07:24:35 AM

Seen it. It's cool.

Title: Powers of Ten
Post by: sandbox on October 07, 2003, 11:34:10 PM

The site is full of neat stuff, http://micro.magnet.fsu.edu/index.html
 like defining digital photography, http://micro.magnet.fsu.edu/primer/digital...s/concepts.html
 the Silicon zoo and the watches!



The watch movement was photographed using oblique illumination through dyed cellulose acetate gels provided by a Dolan-Jenner Fiber-Lite 150 watt tungsten halide projector lamp source equipped with dual fiber optic light pipes. The light pipes were terminated with condensing lenses and linear polarizers oriented with the vibration direction parallel to the microscope optical axis. Additional incident illumination (to remove shadows) was obtained from a Fostec 8325 light source using a fiber optic ring light guide. Images were recorded with an Olympus DP-10 digital video camera on a Nikon SMZ-U zoom stereo microscope.

Title: Powers of Ten
Post by: Xairbusdriver on October 08, 2003, 01:19:10 PM

QUOTE

The watch movement was photographed using oblique illumination through dyed cellulose acetate gels provided by a Dolan-Jenner Fiber-Lite 150 watt tungsten halide projector lamp source equipped with dual fiber optic light pipes. The light pipes were terminated with condensing lenses and linear polarizers oriented with the vibration direction parallel to the microscope optical axis. Additional incident illumination (to remove shadows) was obtained from a Fostec 8325 light source using a fiber optic ring light guide.

Yeah, that's what it looked like to me.   What he said...

What a site! Just spent the last few minutes at it, and I need to go back. How could anyone view this stuff and not get excited about science, or at least biology?!  

Title: Powers of Ten
Post by: krissel on October 09, 2003, 12:56:40 AM

Hmm, I think it's time for a new "what is it?" thread....

Yoo hoo , Petra.... or someone?

 

Title: Powers of Ten
Post by: sandbox on October 09, 2003, 01:00:01 AM

Hey ABD, di you checkout Beershots?
beer photographs taken through an optical microscope.
Grolsch is my choice!