Olympic flame just past my street

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The discussion centers around the Olympic torch relay and the method of lighting the torch, with a focus on using sunlight. A participant explains to their nephew that the torch is lit using a mirror rather than a lens, which leads to a conversation about the practicality of using mirrors versus magnifying glasses for demonstrating how to create fire from sunlight. The conversation highlights the importance of total light collection over magnification, suggesting that larger mirrors may be more effective. Additionally, there is a mention of the difficulty in finding a magnifying glass in local shops, with one participant noting the high price at a specific store. The thread also includes a personal anecdote about attending the Olympic Torch Relay, emphasizing the enjoyment of the event and the community atmosphere.
budd
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The guys have come through my town today with the olympic torch. My nephew asked me if they really did light it from the sun.( with a big wow look on his face)
I explained that he could make a flame from the sun also. We went into town to buy a magnifying glass. There are no shops at all that sell them we could find. Apart from smiths for 11 pounds.(seemed expensive)
So I'm looking online now.
Just wondering if the little jeweler flip out case ones would be as good for magnifying the sun as the bigger 2 1/2 inch one with less magnification?




( hope this makes sense,sorry for my bad english)
 
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hi budd! :smile:

i believe they light it using a mirror, not a lens

you could try a shaving mirror :wink:
 
I thought it might of sounded daft when i posted.
I know it was done by a mirror. just going to show him the power of the sun.
sorry for asking stupid question
 
no it wasn't daft!

but why go to the trouble of buying a lens, when you may already have, or be able to borrow, a mirror which is much larger? :smile:

(because it isn't the magnification that matters, it's the total light collected … so long, of course, as the mirror is actually capable of focussing)
 
You can buy plastic lenses for a pound or two in places like "pound shops" or "The Range".I have even seen them on sale in Tesco.
 
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