« previous next »
« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

A single overhead camshaft engine with a timing belt that also rotates the water pump. A single overhead camshaft engine with a timing belt that also rotates the water pump.
Adjust the water coming from the faucet so that the temperature is comfortable. Water too hot can ... Adjust the water coming from the faucet so that the temperature is comfortable. Water too hot can ...
The structure of liquid water The structure of liquid water
Water pollution types Water pollution types
Minerals and Water Minerals and Water
A 44-g block of ice at -15°C is dropped into a calorimeter (of negligible heat c A 44-g block of ice at -15°C is dropped into a calorimeter (of negligible heat c
Video: Hip Animation

For a complete list of videos, visit our video library