Does demonstrate a scientific property well, but a bit on the plain side as a photo other than one to meet the challenge. Maybe if shot so the magnifying glass overlapped it's shadow more. I do like the clouds in the reflection - more of that would add interest as well.
Just once, I'd really like to see a little black dot with a curl of smoke rising above it.... :P Just kidding. Nice work, but ever-so-slight motion blur happening...
This is cropped too tightly - the magnifying glass should have some room on the right. Some of the edges look slightly blurred also. You could add more interest with a little smoke.
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