spends an enlightening 13 minutes explaining not only how two-liter plastic soda bottles are made, but also how their seemingly simple design incorporates some ingenious engineering. From the ...

This design is a basic one to show how the principle works. Using just the friction of a cork to hold in the air and water means the pressure can't get very high. And most bottles aren't a great ...

My water bottle is attached ... ThermoFlask sells this set of two 17-ounce bottles with the same double-wall insulating technology (as well as a notably similar design and name).

However, we prefer the smaller version and think it's one of the best water bottles in 2024. The leak-proof design means you can chuck it in your gym bag, without having to worry, and the built-in ...