Why is glass transparent? - Mark Miodownik
View full lesson: http://ed.ted.com/lessons/why-is-glass-transparent-mark-miodownik If you look through your glasses, binoculars or a window, you see the world on the other side. How is it...
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Take a look out your window,put on your glasses if you wear them.You might want to grab a pair of binoculars, too,or a magnifying lens.Now, what do you see?Well, whatever it is,it's not the multiple layers of glassright in front of you.But have you ever wonderedhow something so solid can be so invisible?To understand that,we have to understand what glass actually is,and where it comes from.It all begins in the Earth's crust,where the two most common elements aresilicon and oxygen.These react together to form silicon dioxide,whose molecules arrange themselvesinto a regular crystalline form known as quartz.Quartz is commonly found in sand,where it often makes up most of the grainsand is the main ingredient in most type of glass.Of course, you probably notic...
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Take a look out your window,put on your glasses if you wear them.You might want to grab a pair of binoculars, too,or a magnifying lens.Now, what do you see?Well, whatever it is,it's not the multiple layers of glassright in front of you.But have you ever wonderedhow something so solid can be so invisible?To understand that,we have to understand what glass actually is,and where it comes from.It all begins in the Earth's crust,where the two most common elements aresilicon and oxygen.These react together to form silicon dioxide,whose molecules arrange themselvesinto a regular crystalline form known as quartz.Quartz is commonly found in sand,where it often makes up most of the grainsand is the main ingredient in most type of glass.Of course, you probably notic...
