How to see thunder
Laboratory experiments that demonstrate the effect of thunder within controlled conditions at the Lightning Testing and consultancy in Oxfordshire. There are four stages to the demonstration. The first is a test firing of the experiment, where there volume of the thunder can be heard.
Next, a series of candles and slow motion cameras are used to show how thunder’s shock wave travels, extinguishing the candles. An explanation of how temperature differences cause thunder is given outside using a lens and wood. A typical bolt of lightning will reach 20,000 degrees Celsius. Because of this heat, the air around it is exploded / expanded into a shockwave.
A third iteration of the demonstration sees thunder breaking lightbulbs, and slow motion allows viewers to distinguish between the shock wave (thunder) and the lighting.
The final demonstration allows the shockwave itself to be seen.
Duration:
This clip is from
More clips from Learning Zone
-
Why does water fall as rain?
Duration: 05:23
-
How can you cool a drink using the sun?
Duration: 01:18
-
How does a thermal form?
Duration: 03:48
-
How does hail form?
Duration: 00:52
More clips from Wild Weather with Richard Hammond
-
Why does water fall as rain?—Learning Zone
Duration: 05:23
-
How can you cool a drink using the sun?—Learning Zone
Duration: 01:18
-
How does a thermal form?—Learning Zone
Duration: 03:48
-
How does hail form?—Learning Zone
Duration: 00:52