Long Lens

This week we will see that you can do science experiments anytime, even while cleaning out the refrigerator. Well, to be honest, it distracted me from cleaning out the refrigerator, but eventually the job will get done. I promise. I really do promise. To avoid cleaning your refrig.... I mean to try this experiment, you will need:


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Sarora wrote on Thu, 05/08/2014 - 03:23:

hello dr krampf,
what are you trying to show in the last picture above? (where the two olive jars are placed back to back).
it looks like one has water and the other doesn't?
thankyou

rkrampf wrote on Sat, 05/10/2014 - 05:28:

You are correct. For the jar that is full of water, the light is focused into a bright line, while the jar with air does not. That photo is to let you compare the way light passes through the two different substances.

Singinggirl wrote on Tue, 10/01/2013 - 10:52:

Thats cool!!

Anonymous wrote on Thu, 05/02/2013 - 10:35:

Wow ant wait to try it

joeli_g wrote on Mon, 04/29/2013 - 18:14:

I found that NINE BIKES BIKED worked!

manatee wrote on Mon, 03/18/2013 - 20:59:

That is awesome,can't wait to try.

Anonymous wrote on Tue, 02/19/2013 - 19:59:

SO COOL is also SO COOL upside down

Egans wrote on Wed, 03/20/2013 - 13:44:

Except for the L.

lrussell1511 wrote on Tue, 01/22/2013 - 15:42:

so cool!!!!!!!!!!!!!!

brevard wrote on Thu, 01/31/2013 - 13:27:

That Is Really Cool,I Can't Wait To Try That But I Don't Necessarily Like Olives.

kittygirl wrote on Thu, 01/17/2013 - 08:53:

but y would u want to "hide your bike"?!?!

Anonymous wrote on Mon, 01/14/2013 - 11:48:

we found that 'CHEEKY BEE BOXED ODD CHICK' works! It sounds weird but it worked for us!

rkrampf wrote on Mon, 01/21/2013 - 17:49:

That works great, except for the "Y" in CHEEKY.