# Fun with Fresnel Lenses...

**URL:** <https://boards.straightdope.com/t/fun-with-fresnel-lenses/355541>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [May 5, 2006, 2:53pm UTC](https://boards.straightdope.com/t/fun-with-fresnel-lenses/355541 "2006-05-05T14:53:00Z")\
**Posts on this page:** 5\
**Page:** 2

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**Author:** ![Unintentionally\_Blank](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/unintentionally_blank/32/5418_2.png) [@Unintentionally\_Blank](https://boards.straightdope.com/u/Unintentionally_Blank)\
**Post date:** [May 6, 2006, 3:02pm UTC](https://boards.straightdope.com/t/fun-with-fresnel-lenses/355541/21 "2006-05-06T15:02:58Z")

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> [@Ale](#):
>
> Can it burn Roman ships at a bow-shot distance?

Depends on the scale. 🙂 1:64, sure I’ll dominate the battle. 1:1, not so much.

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**Author:** ![marginal\_prophet](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@marginal\_prophet](https://boards.straightdope.com/u/marginal_prophet)\
**Post date:** [May 6, 2006, 10:08pm UTC](https://boards.straightdope.com/t/fun-with-fresnel-lenses/355541/22 "2006-05-06T22:08:43Z")

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I used to burn ants with a magnifying glass, to the disgust of my sister.  
Stunk up the place.

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**Author:** ![pinkfreud](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/pinkfreud/32/17603_2.png) [@pinkfreud](https://boards.straightdope.com/u/pinkfreud)\
**Post date:** [May 6, 2006, 10:26pm UTC](https://boards.straightdope.com/t/fun-with-fresnel-lenses/355541/23 "2006-05-06T22:26:55Z")

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I frizzled so many insects when I was a kid that I called the device a “maggot-frying glass.”

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**Author:** ![Nic2004](https://avatars.discourse-cdn.com/v4/letter/n/4491bb/32.png) [@Nic2004](https://boards.straightdope.com/u/Nic2004)\
**Post date:** [May 6, 2006, 10:50pm UTC](https://boards.straightdope.com/t/fun-with-fresnel-lenses/355541/24 "2006-05-06T22:50:01Z")

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Many a bug awaits me in hell.  
Of this I’m certain.

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**Author:** ![MissMossie](https://avatars.discourse-cdn.com/v4/letter/m/f6c823/32.png) [@MissMossie](https://boards.straightdope.com/u/MissMossie)\
**Post date:** [May 7, 2006, 5:07am UTC](https://boards.straightdope.com/t/fun-with-fresnel-lenses/355541/25 "2006-05-07T05:07:24Z")

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> [@drewbert](#):
>
> Mere amateurs, all of you.
> 
> [http://www.solardeathray.com/](http://www.solardeathray.com/)

Yeah, but is it a 1920’s Style Solar Death Ray?

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