URL and glasses: what they have in common

1. Step 1. URL — is used in — World Wide Web. Addresses.
2. Step 2. World Wide Web — was inspired by — Particle accelerator. The web was invented at CERN for sharing physicists’ data.
3. Step 3. Particle accelerator — uses — Electromagnet. Bending magnets.
4. Step 4. Electromagnet — is used in — Electron microscope. Magnetic lenses.
5. Step 5. Electron microscope — evolved from — Microscope. Overcoming the limit of optics.
6. Step 6. Microscope — evolved from — Glasses. Spectacle makers assembled the first microscopes.

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