Pneumatic conveying is used to transport a wide variety of powders or granular solids in a gas stream. A review by Marcus et al. (1990) provides an extensive list of ca. 300 types of materials ...

The average car has around 30,000 parts and many fluids are used to keep them running properly. The most important fluids are motor oil, transmission fluid, brake fluid, washer fluid and coolant.

Relative density. Fluid mechanics. A metal ball with a relative density greater than one sinks in water, while a leather ball with a relative density less than one floats on the surface of the liquid.

When two fluids don't mix well, they sometimes form strange patterns called "viscous fingering," or Saffman-Taylor instability. Studying these patterns can help scientists understand how to design ...

So, you’re driving a car at half the speed of light. (Both hands on the wheel, please.) You turn on the headlights. How fast would you see this light traveling? What about a person standing by the ...

Homeland Security Secretary Kristi Noem, who oversees the TSA, teased the changes on Wednesday, July 16 Homeland Security Secretary Kristi Noem just teased a possible change coming to TSA's carry-on ...

The rule has been in place since 2006. One week after announcing an end to the requirement that passengers remove their shoes when undergoing airport security screening, the Department of Homeland ...

The liquid rule for carry-on bags could be the next airport security measure to be overhauled. Kristi Noem, Secretary of the Department of Homeland Security, hinted at a possible policy change on ...

Although you can now keep your shoes on at TSA checkpoints, you still can't bring a large bottle of lotion. Ever wondered why you can only bring 3.4 ounces or less of liquids in your carry-ons? Here's ...

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Stomach flu can cause diarrhea and vomiting that dehydrate you quickly. You may need fluids delivered through your veins so that you can recover. Stomach flu happens when a virus causes an infection ...