Caption: When large reservoirs are connected by very narrow and long channels, the liquid in each reservoir acts independently of the liquid in adjacent reservoirs. In the microworld, the physics is ...

Department of Homeland Security Secretary Kristi Noem on Wednesday hinted at changes to airport security liquid container size regulations. At the Hill Nation Summit, Noem said the size of liquid ...

TSA’s 3-1-1 rule requires liquids in carry-ons to be in 3.4-ounce containers within one quart-size bag. Exemptions to the 3-1-1 rule include medically necessary liquids, baby formula, and duty-free ...