This is a phonograph strip. When you press your thumbnail to the ridges and pull, the thumbnail vibrates, and you can hear the message that was recorded on the strip.
1:1 Private Teaching in a dedicated classroom
Subscribe to:
Post Comments (Atom)
A-Level Physics Investigating Gravitational Fields Using Simulation Tools and Experiments
A-Level Physics Investigating Gravitational Fields Using Simulation Tools and Experiments Gravitational fields are one of those A-Level P...
-
How hot is the soil vs the air? Time to take the @pascoscientific wireless temperature sensors for a summer stroll. 🌱 Taking Science Out... -
o You’ve Got Yourself a New Microscope – What Next? 🔬 Congratulations! You’ve just entered the fascinating world of microscopy. Whether yo... -
The grass is greener… when you code your garden to water itself. Hacking the Summer – How to Build a Smart Irrigation System with Raspberry...
No comments:
Post a Comment