Why do sealed plastic bottles cave in during cold weather?

Answer Air pressure and volume are directly related to air temperature. If air pressure remains constant, falling temperature will cause air volume to decrease. Increasing temperature will cause volume to... Read More »

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Why Do Plastic Bottles Cave in During Cold Weather?

Plastic bottles cave during cold weather due to an increase in outside air pressure. Warm air is less dense than cold. When air originally fills a bottle, it has a certain number of molecules. Afte... Read More »

Differences Between Reusable Water Bottles and Plastic Bottles?

Designers and manufacturers make water bottles in a variety of different styles and shapes. If a bottle is a single use only, attention is paid to certain aspects, such as safety-sealed lids. If a ... Read More »

Is the Canon 50D weather sealed?

The Canon 50D digital SLR camera is partially weather sealed. It is not completely weather sealed like the Canon 1D series digital SLR camera, meant for professionals. The Canon 50D has partial wea... Read More »

How cold is it in Wind Cave?

The U.S. National Parks Service reports the average temperature of the Wind Cave system of underground caves in western South Dakota is 53 degrees Fahrenheit. The temperature in the caves is higher... Read More »