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Science 101: Heat and Thermal Conductivity

Tuesday, March 08, 2011

Last year, New York City's 4th and 8th graders scored below both the state and national averages on a nationwide science exam. Today, Katie Gardner, Science Educator at Liberty Science Center, answers heat and thermal conductivity questions from the exam.

Guests:

Katie Gardner

Comments [5]

james from LA

Thermal conductivity info on this page:
http://www.pa-international.com.au/index.php?option=com_content&view=article&id=117&Itemid=167

Jul. 12 2011 10:31 PM
oscar from ny

you guys shouldn't worry, by the time were thru our lil oil, well have to start using a technology called aether,with the basic power of electricity and waves..so one day we will all hoover all thruout the city..

Mar. 08 2011 09:38 PM
: / !!! from here!

black is an absence of color, therefore that's why it absorbs all the other wavelengths indicative of other 'colors' [how we perceive that energy] white is all the wavelengths together.

the sky appears to be blue b/c that's the smallest wavelength of color reflecting available light that our visual neurons can see. animals such as raptors/hawks/falcons, can see infra-red wavelengths, so the sky would appear more purplish to them. dogs, for the record, see in B&W.

finally, i've heard that blue is a better color to where to protect yourself than white, anybody else know @ this? light blue more than medium? hopefully not too bhurka-ish.

Mar. 08 2011 12:15 PM
Jean from Jean from Manhattan

Possibly unrelated to the subject matter at hand, but can your guest explain why the sky appears to be blue.

Mar. 08 2011 11:58 AM
gary from queens

Induction stovetop units are vastly more energy efficient than gas flame or electric coils. Example:

"The U.S. Department of Energy has established that the typical efficiency of induction cooktops is 84%, while that of gas cooktops is 40%"

Source: http://theinductionsite.com/how-induction-works.shtml

But induction units operate by generating a field of electromagnetic energy.

QUESTION: Have there been enough studies on the longterm effects of possible health risks?

Mar. 08 2011 08:52 AM

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