Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

Groucho's Fact Hunt

C7NvT-oV4AAjylo.jpg


Hitler's nephew, William Stuart-Houston, served in the US navy during the War winning the purple heart. He was born in Toxteth.
 

Stolen from our kid's science class -

You can measure the speed of light with a microwave and some cheese on toast.
Take out the revolving dish, place the cheese on toast in the microwave (so it doesn't move), and heat it for abar 20 secs.

Take it out and you should see hot spots where the cheese is melting. Measure the distance between two of them and that is approx half the wavelength of the microwave electromagnetic radiation (ie light). The frequency is standard for a given microwave (usually 2.4 GHz), and wavelength x frequency = speed.
 
Stolen from our kid's science class -

You can measure the speed of light with a microwave and some cheese on toast.
Take out the revolving dish, place the cheese on toast in the microwave (so it doesn't move), and heat it for abar 20 secs.

Take it out and you should see hot spots where the cheese is melting. Measure the distance between two of them and that is approx half the wavelength of the microwave electromagnetic radiation (ie light). The frequency is standard for a given microwave (usually 2.4 GHz), and wavelength x frequency = speed.

Blah blah blah blah blah blah blah blah blah blah.

That's all I see. Kind of like when my eldest brings his maths work home. Maths shouldn't have letters and squiggles in it. Maths is numbers.
 
Stolen from our kid's science class -

You can measure the speed of light with a microwave and some cheese on toast.
Take out the revolving dish, place the cheese on toast in the microwave (so it doesn't move), and heat it for abar 20 secs.

Take it out and you should see hot spots where the cheese is melting. Measure the distance between two of them and that is approx half the wavelength of the microwave electromagnetic radiation (ie light). The frequency is standard for a given microwave (usually 2.4 GHz), and wavelength x frequency = speed.

interesting.

So my cheese hot spots measure 6.25 centimetres apart giving a wavelength of 12.5 centimetres.
12.5 centimetres =0.125 metres
.125 m x 2,400,000,000cycles/s = 300,000,000 m/s (which is indeed the speed of light (c) in a vacuum).

NB : Adjusting for the refractive index of light through air (ie in a microwave oven), would adjust the melted cheese distance down a little bit.
 
Last edited:
interesting.

So my cheese hot spots measure 6.25 centimetres apart giving a wavelength of 12.5 centimetres.
12.5 centimetres =0.125 metres
.125 m x 2,400,000,000cycles/s = 300,000,000 m/s (which is indeed the speed of light (c) in a vacuum).

NB : Adjusting for the refractive index of light through air (ie in a microwave oven), would adjust the melted cheese distance a little bit.
I concur.
 
On consideration, you might say the melted cheese distance indicates the total refraction of the microwave post its exiting the magnetron (ie its deviation from 6.25 centimetres would reflect (pardon the pun) light's/the microwave photon's velocity retardation).

I imagine there's an index for this (the melted cheese index?)
 
Last edited:

Pink Floyd's album The Dark Side Of The Moon only spent 1 week at number 1 in the Billboard 200 in 1973.

It stayed in the chart for 741 weeks until 1988, however, and sold 45million copies.
 
Stolen from our kid's science class -

You can measure the speed of light with a microwave and some cheese on toast.
Take out the revolving dish, place the cheese on toast in the microwave (so it doesn't move), and heat it for abar 20 secs.

Take it out and you should see hot spots where the cheese is melting. Measure the distance between two of them and that is approx half the wavelength of the microwave electromagnetic radiation (ie light). The frequency is standard for a given microwave (usually 2.4 GHz), and wavelength x frequency = speed.
Is there nothing Cheese on Toast can't do?
 

Welcome

Join Grand Old Team to get involved in the Everton discussion. Signing up is quick, easy, and completely free.

Back
Top