About 158 results for "UCEIwxahdLz7bap-VDs9h35A" - Time taken: 383 ms

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PT10M27S

The cheap Chinese bulb that won't turn off

Steve MouldJul 5, 2019

11m

PT17M35S

How a quartz watch works - its heart beats 32,768 times a second

Steve MouldMay 23, 2019

8.5m

PT9M20S

Piezoelectricity - why hitting crystals makes electricity

Steve MouldMay 16, 2019

5.2m

PT12M37S

A better description of resonance

Steve MouldApr 13, 2017

1.6m