While we generally use them to keep our drinks hot, vacuum flasks were invented by James Dewar in 1892 to keep ... he designed a double-walled glass flask and removed the air from the space ...

(WYTV)- Just like jet ski, tarmac, and ping pong, thermos is a brand name, what you’re really talking about is a vacuum flask ...

The Scots are an inventive people and the world owes the vacuum flask to James Dewar, born on this day in 1842. Robert Burns, always happy to inscribe objects, died too soon to have been able to ...