Measure the screen diagonally. How are TVs measured, anyway? When you see the touted size spec on a TV’s tag or in one of our write-ups, that size is always referring to the diagonal measurement ...

Dear Tom, Would you explain what millibars are? How is 923 millibars assigned in a hurricane? Margaret Robertson, Chicago Dear Margaret, A millibar is a measure of pressure. The Earth’s ...

A millibar is a measure of atmospheric pressure inside a storm, telling meteorologists how strong or weak the storm system is. MORE: Massive storm, brutal cold hitting US this week: What to expect ...

How barometric pressure is measured. 1 inch of mercury = 33.864 millibars. So, when you see a pressure given as 29.92' of Hg, it is the same as 1013.21 mb (29.92 x 33.864).