Why Doesn't Super Glue go Hard in the Tube?
Ask the Naked Scientists
00:00
Introduction
Dr Chris Smith answers your questions about the weather, science and natural history. From Cape Town to London it's a lovely foggy day - but towns are not so lucky. The difference between mist and fog is really on the scale of how dense they can be. Google has been protecting Americans from cybersecurity threats for 20 years. Learn more at safety.google.com.
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