Processive DNA polymerases that replicate chromosomes interact with a ring-shaped clamp that encircles DNA and slides along the duplex. All sliding clamps (Escherichia coli β-clamp, T4 bacteriophage ...

Tired of expensive welding gear? These $4 DIY clamps prove you can get professional results on a budget. Watch the full build and see how a few simple materials turn into reliable, heavy-duty tools.

In the standard form of a flyback converter, the leakage inductance of the transformer creates a voltage spike on the drain of the primary field-effect transistor (FET). Preventing this spike from ...