32K views · 30 reactions | In my first reel of 2024, I want to ask a physics question that seemingly has an obvious answer, but becomes more interesting the more I think about it. I hope to find more of these little things in our everyday life that spark curiosity this year in my role as an educator. The idea of absorbing EM radiation is also present in X-ray scanning in medical uses. Our flesh and muscles allow x-rays to be transmitted whilst our bones absorb them. | vt.physics | Facebook

I remember the lecturer in my first-year course called "Physics In Everyday Life" showing us this little trick. I sat at the back of the lecture theater and tried this straight away. Made a tiny hole with my hand and, lo and behold, I could tell the time from a clock all the way on the other side of the theater without my 👓 it felt like I had super power for a brief moment 😆 I wish I have 20/20 vision 🥹 How does a pinhole camera work? A pinhole or a small opening can focus light coming from a