Size and Scale

Trace your shadow, then make it change.

¡Descubre la “coincidencia cósmica” que hace posible los eclipses solares!

¡Haz un modelo a escala de un eclipse solar total!

¡Usa el pulgar para eclipsar a tu amigo!

Use your thumb to eclipse your friend!

Make a scale model of a total solar eclipse!

Discover the “cosmic coincidence” that makes solar eclipses possible!

Usa tu teléfono celular para explorar el mundo a través de un miniscopio.

Discover some big surprises in the microscopic world.

Explore the size and scale of microscopic biology.

Use your cell phone to explore the mini-scopic world.

Movement is reduced to stillness, given an astronomical gear ratio.

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