Comments on: Measure the Speed of Light Using Your Microwave http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/ Astronomy, Space and Science Thu, 18 Mar 2010 17:40:00 -0500 http://wordpress.org/?v=2.8.5 hourly 1 By: Frodnew http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14839 Frodnew Fri, 12 Mar 2010 23:51:56 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14839 This is awesome! I have boxes and bags of all kinds of food stuff that I didn't know what to do with. Hello Microwave! This is awesome! I have boxes and bags of all kinds of food stuff that I didn’t know what to do with.
Hello Microwave!

]]> By: alt f4 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14813 alt f4 Fri, 26 Feb 2010 02:10:46 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14813 cool good work want more my class will enjoy cool good work want more my class will enjoy

]]> By: Stricko http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14812 Stricko Fri, 26 Feb 2010 02:05:06 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14812 Hey thanks will use on my year 11 physics class should save me writing my own experiments and the school will pay for my lunch 2. Great! Hey thanks will use on my year 11 physics class should save me writing my own experiments and the school will pay for my lunch 2.

Great!

]]> By: F1LT3R http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14804 F1LT3R Wed, 24 Feb 2010 17:11:59 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14804 DUUUUUUDE!!! They should give you your own TV show. I would watch it... all-the-time. DUUUUUUDE!!! They should give you your own TV show. I would watch it… all-the-time.

]]> By: Marshmallows and the Speed of Light « Science@Interhigh http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14795 Marshmallows and the Speed of Light « Science@Interhigh Thu, 18 Feb 2010 20:48:31 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14795 [...] http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/ [...] [...] http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/ [...]

]]> By: Jonass http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14776 Jonass Mon, 08 Feb 2010 13:19:33 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14776 BRILLIANT marshmallows! BRILLIANT marshmallows!

]]> By: 4Z5LV http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14768 4Z5LV Sat, 06 Feb 2010 09:15:30 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14768 Nice project, but It is hard to calculate exact speed of light from this experiment, cause wavelength (phase speed of electromagnetic field) inside cavity or waveguide can very be different from speed in open space (usually measured wavelength inside of cavity will be shorter) Nice project, but It is hard to calculate exact speed of light from this experiment, cause wavelength (phase speed of electromagnetic field) inside cavity or waveguide can very be different from speed in open space (usually measured wavelength inside of cavity will be shorter)

]]> By: harrypotter http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14732 harrypotter Wed, 27 Jan 2010 01:58:34 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14732 i did this project but i still dint understand how thats the speed of light i did this project but i still dint understand how thats the speed of light

]]> By: maheen gul http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14714 maheen gul Wed, 20 Jan 2010 05:36:57 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14714 hi, you have done a wonderful work indeed. i will try to measure the speed of light with this method thank u very much. hi, you have done a wonderful work indeed. i will try to measure the speed of light with this method thank u very much.

]]> By: Alejandro http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14643 Alejandro Tue, 05 Jan 2010 20:34:52 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14643 Great!! I have a group of students that will definetly benefit! Thank you Great!!
I have a group of students that will definetly benefit!
Thank you

]]> By: Home School Mom http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14408 Home School Mom Mon, 07 Dec 2009 02:59:02 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14408 Really glad I found your site...if you have more wonderful experiments such as this to share please email me. This is wonderful stuff for our home school classroom:-) Thanks so much, from Beautiful North Idaho! Really glad I found your site…if you have more wonderful experiments such as this to share please email me. This is wonderful stuff for our home school classroom:-) Thanks so much, from Beautiful North Idaho!

]]> By: Daniel http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14290 Daniel Mon, 23 Nov 2009 07:57:04 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14290 Very helpful, I used this for an assignment in science. Although with chocolate melt I had to use the melts that tops melted into them. Thanks a heap. Very helpful, I used this for an assignment in science. Although with chocolate melt I had to use the melts that tops melted into them. Thanks a heap.

]]> By: Renaud (PhD) http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14241 Renaud (PhD) Wed, 18 Nov 2009 16:46:35 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14241 This experiment is a pretty good experiment. I will try and enjoy it during Science festivities in France. Thank you ! >> Realist, what you say is definitively wrong, this experiment prove the reality of the speed of... photon not light at 2.45GHz. Measurement of the frequency of a magnetron is done with electronic system (antenna) not with any information about speed of light! sorry for you... In fact this experiment proves : speed of photon and standing waves in a cavity. Very very good! This experiment is a pretty good experiment. I will try and enjoy it during Science festivities in France.
Thank you !

>> Realist, what you say is definitively wrong, this experiment prove the reality of the speed of… photon not light at 2.45GHz. Measurement of the frequency of a magnetron is done with electronic system (antenna) not with any information about speed of light! sorry for you…

In fact this experiment proves : speed of photon and standing waves in a cavity. Very very good!

]]> By: ttfnRob http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14046 ttfnRob Mon, 31 Aug 2009 18:18:02 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14046 Realist: you have missed the point! This is science activity for your kitchen that reasonably accurately results in you determining the speed of light using a microwave. The frequency on the back is pretty well defined and the result is usually fairly accurate to all intents and purposes. I'm afraid you are re-enforcing the stereotype of scientists lacking a sense of humour. It uses marshmallows for goodness sake! Realist: you have missed the point! This is science activity for your kitchen that reasonably accurately results in you determining the speed of light using a microwave. The frequency on the back is pretty well defined and the result is usually fairly accurate to all intents and purposes.

I’m afraid you are re-enforcing the stereotype of scientists lacking a sense of humour. It uses marshmallows for goodness sake!

]]> By: Realist http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14045 Realist Mon, 31 Aug 2009 11:30:09 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14045 As interesting as this experiment is, unfortunately it does not prove anything about the speed of light. That frequency you see printed on the back of a microwave? The manufacturers don't measure it directly. Instead, they measure the wavelength of the antenna they built inside their microwave, and take the published value of the speed of light and work that equation the other way to derive the frequency. So when you take the same measurement, and use that printed value that was actually derived from the "unknown" variable, and plug it back into the same equation, of course you wind up with the same "unknown" variable the manufacturer started with. You've learned nothing new, sorry. As interesting as this experiment is, unfortunately it does not prove anything about the speed of light.

That frequency you see printed on the back of a microwave? The manufacturers don’t measure it directly. Instead, they measure the wavelength of the antenna they built inside their microwave, and take the published value of the speed of light and work that equation the other way to derive the frequency.

So when you take the same measurement, and use that printed value that was actually derived from the “unknown” variable, and plug it back into the same equation, of course you wind up with the same “unknown” variable the manufacturer started with. You’ve learned nothing new, sorry.

]]> By: Greg http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14040 Greg Fri, 28 Aug 2009 19:48:25 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14040 Hi! I did your microwave experiment with a group of first graders as part of a program i did for IYA. They loved it AND i can say they seemed to grasp the concept well. One of the 6year olds ask me if this would work with chocolate colored marshmallows? Thanks again! Gregg Hi! I did your microwave experiment with a group of first graders as part of a program i did for IYA. They loved it AND i can say they seemed to grasp the concept well. One of the 6year olds ask me if this would work with chocolate colored marshmallows? Thanks again! Gregg

]]> By: Femke http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-14007 Femke Thu, 13 Aug 2009 09:11:24 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-14007 Hi, I tried this too with my microwave, but my result are nowhere as clear as yours. I am starting to think my microwave has a stirrer device hidden somewhere in addition to the turntable. Since I am writing an article for a Dutch website I was wondering whether I could use your images. Please contact me by e-mail... Hi, I tried this too with my microwave, but my result are nowhere as clear as yours. I am starting to think my microwave has a stirrer device hidden somewhere in addition to the turntable. Since I am writing an article for a Dutch website I was wondering whether I could use your images. Please contact me by e-mail…

]]> By: Peter http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-13744 Peter Fri, 15 May 2009 00:43:59 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-13744 Just have found your site (searching for people with the words PhD and Astronomy on Twitter), and I have to say, it's amazing! Just have found your site (searching for people with the words PhD and Astronomy on Twitter), and I have to say, it’s amazing!

]]> By: Duane Nickull http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-13671 Duane Nickull Fri, 10 Apr 2009 17:05:24 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-13671 But will it work with the new Apple Microwave ovens? http://technoracle.blogspot.com/2009/04/i-can-finally-talk-about-my-apple.html But will it work with the new Apple Microwave ovens?

http://technoracle.blogspot.com/2009/04/i-can-finally-talk-about-my-apple.html

]]> By: Microwaves: shittty for cooking burritos, great for calculating the speed of light « WastingTimeWithMikeAndAri http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-12999 Microwaves: shittty for cooking burritos, great for calculating the speed of light « WastingTimeWithMikeAndAri Wed, 09 Jul 2008 14:04:29 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-12999 [...] Science does rule. [...] [...] Science does rule. [...]

]]> By: Air Pressure and Coke Cans | Orbiting Frog http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-12652 Air Pressure and Coke Cans | Orbiting Frog Fri, 06 Jun 2008 10:56:46 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-12652 [...] recently did a piece on measuring the speed of light using your microwave. Well here is some more physics you can play with in your kitchen. This time let’s create a [...] [...] recently did a piece on measuring the speed of light using your microwave. Well here is some more physics you can play with in your kitchen. This time let’s create a [...]

]]> By: Mum http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-12130 Mum Thu, 22 May 2008 11:52:35 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-12130 Of course, I always knew how clever you are. Please will you do the marshmallows thing next time you come to stay. Of course, I always knew how clever you are. Please will you do the marshmallows thing next time you come to stay.

]]> By: Chris http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-12018 Chris Mon, 19 May 2008 21:26:15 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-12018 Did you have too much time on your hands while doing this expirement? If so, we need a lot of people with your talent of "What ifs" to be bored. Did you have too much time on your hands while doing this expirement? If so, we need a lot of people with your talent of “What ifs” to be bored.

]]> By: fred http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-11935 fred Fri, 16 May 2008 19:45:31 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-11935 Technically, you are not measuring the speed of light, but the wavelength. You then CALCULATE the speed of light. But still cool, and full of marshmallow goodness!!! Technically, you are not measuring the speed of light, but the wavelength. You then CALCULATE the speed of light. But still cool, and full of marshmallow goodness!!!

]]> By: Carnival of Space, How to confound ‘Big Brother’ and other Friday findings « Dad2059’s Blog of Science-Fiction/Science Fact and Tinfoil http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-11917 Carnival of Space, How to confound ‘Big Brother’ and other Friday findings « Dad2059’s Blog of Science-Fiction/Science Fact and Tinfoil Fri, 16 May 2008 11:48:36 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-11917 [...] is also playing with sugary foods in the interest of science education. Have a bite of his clever “Measure the Speed of Light Using Your Microwave” demo.Bad Astronomy debunked UFOsthis past week, and Charles Lintott summed up his anxiety about the [...] [...] is also playing with sugary foods in the interest of science education. Have a bite of his clever “Measure the Speed of Light Using Your Microwave” demo.Bad Astronomy debunked UFOsthis past week, and Charles Lintott summed up his anxiety about the [...]

]]> By: Jeff http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-11882 Jeff Thu, 15 May 2008 18:27:55 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-11882 Super! Goodness gracious! If only we could clone folks like you can make them all science teachers!!! Super! Goodness gracious! If only we could clone folks like you can make them all science teachers!!!

]]> By: Mang http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/comment-page-1/#comment-11824 Mang Tue, 13 May 2008 11:00:09 +0000 http://orbitingfrog.com/blog/2008/05/13/measure-the-speed-of-light-using-your-microwave/#comment-11824 Brilliant! Cubs and Scouts will love this. http://mangsbatpage.433rd.com/2008/05/yummy-science-experiment-eating-speed.html Brilliant! Cubs and Scouts will love this.

http://mangsbatpage.433rd.com/2008/05/yummy-science-experiment-eating-speed.html

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