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## WJEC PH4 Physics, SHM.

## A level, S2, Estimation, text

## Physics A level, Op-amp.

## The brilliance of Greek mathematicians

Why the sum of angles in a triangle is 180 degrees?

## CIE Maths A2. Complex number

## Water droplet

This is the most fascinating photo I have ever taken. I shot about 200 droplets from the water faucet for half an hour. This one shot really stunned me. What you see here is a non-edited jpeg camera file cropped out. The water thread was fully stretched giving perfect necking with the water droplet. This is the final instant of time where the dropletÂ was still hanging. On the bubble you can see reflection images of the surrounding of my kitchen. I made history.