physics
![Two gallon-sized paint cans–one made out of clear plastic and the other metal– are side by side on a table. Behind them, two youths are seated at the table. Together they place a handheld, hand crank radio with a long antenna into the plastic paint can.](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/2023-03/radio_20221027_0937.jpg?h=350e2dc8&itok=_AfzhLVr)
Radio Explorers: Radio Silence
Learners compare and contrast how a variety of materials can block radio waves.
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![Photo of the various materials used in Objects in Motion](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/11_objects_in_motion.jpg?h=deaec4b9&itok=hvuQ1cLA)
Exploring the Universe: Objects in Motion
In this activity, learners use "orbiting" clay balls to make simple, functioning models of interacting objects in space.
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![](https://nisenet.org/sites/default/files/styles/curated_list_large/public/images/catalog/12626/spin_torsion_oscillator_nis.jpg?itok=zkCckfwl)
Scientific Image - Spin Torsion Oscillator
Magnified image of nanomechanical torsion oscillator using a Scanning Electron Microscope.
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![Amazing Juggling Nano Brothers show poster featuring a man holding a magnifying glass while observing small scaled characters on a stool](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/images/catalog/5321/080201_small_juggling_poster.jpg?h=f9b37c79&itok=h476lHu6)
The Amazing Nano Brothers Juggling Show
Stage presentation using juggling focused on atoms, molecules, nanoscale forces.
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