I teach critical thinking and logic, and I would like to share with Philosophy Now readers a useful way of understanding the concept of deductive validity by an analogy to a thermos flask ... thermos ...

Made with durable stainless steel, the Hydro Flask All Around Travel Tumbler has a powder coat that is durable and sweat-free ...

When the nights get chilly, a Stanley flask or thermos doubles as the perfect hot water bottle for bedtime. Heat up water on ...

Stampeding and fighting over what is ultimately just a thermos — that’s even been proven to be pretty similar to its cheaper counterparts — is more about what the Stanley tumblers represent.

The flask even includes a built-in lanyard so ... so you can toss it in your backpack without worrying about any spills. This Stanley thermos with an integrated spork is designed with a leakproof ...

The first thing a coffee thermos has to do is keep coffee ... Hydro Flask Coffee with Flex Sip Lid – See at Hydro Flask Best large capacity: Stanley Classic Legendary Bottle – See at Amazon ...

From lightweight and compact for all on the go - to environmentally friendly options made from recycled materials.

After new testing, we have two new picks: the Hydro Flask 24 oz Wide Mouth with Flex ... the threads when we left it on its side overnight. Stanley Quik Flip Go Bottle: This is one of the few ...

Each is customer-loved and comes from reputable manufacturers, including Hydro Flask, Under Armour and the famous Stanley brand. Shop our top picks and we're sure you'll find the best reusable ...

To dry the flask, simply leave it open and turn it upside down. To clean the inside of a thermos from coffee stains or other stains, put one tablespoon of powdered soap for automatic dishwasher ...

Stanley just dropped five new colors of Quencher tumblers, IceFlow water bottles, steins, stacking pints and more. Here's the only place you can grab the new Hammertone Homecoming Collection while it ...