admin – Four Motions

An Evening with Newton

A Dialogue on the Four Universal Motions A staged conversation. ROBERT DE HILSTER and DAVID DE HILSTER sit on a[…]

The Picture That Replaced Understanding Every textbook shows it. Two sine waves threading down an axis — one blue, one[…]

Here is an experiment you can do. Grab a compass and a battery and move the compass around the battery.[…]

Your Phone Already Knows the Answer Set your phone down on a wireless charging pad and watch the battery fill[…]

The planetary model of the atom has been shown to be too simplistic for describing the complex orbitals of atoms.[…]

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A Stripe of Color on the Wall Most of us met dispersion as children, probably without knowing its name. A[…]

Coming…

Coming