Thursday, 31 January 2019

Polar vortex: What is it and how does it happen?

The deep freeze gripping much of the US has been blamed on a polar vortex. Here's what that means.

from BBC News - World https://bbc.in/2Sex5LW
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Watch: Blood donors get a Halloween fright in Thailand

Thai Red Cross workers dressed up as part of a Halloween-themed blood drive in the country's capital Bangkok. from BBC News https://if...