Gadgets

Could a bike be your best health investment ever?

Posted on June 24, 2010 at 8:14 am

Many people find excess weight of perennial problem, difficult to address and sometimes impossible to solve. Some have tried jogging every morning, only to find the need to wake up very early burdensome. Going to the gym is an option, but an impossible one if you have deadlines almost every working day of the week. One solution to try is cycling, whether indoor or outdoor. Invest in a good bike for sunny weekends or buy a stationary bike that whole family can use in the morning or early evening.

Cycling is good all-around exercise, improving both endurance and aerobic capacity. It tones various muscle groups like the calves and thighs and strengthens the back. An hour of cycling can burn between 250 and 700 calories, depending on the intensity. It is also an excellent stress reducer. For those who may be

Aerometer

Posted on February 22, 2010 at 8:00 am

The aerometer also called hydrometer is an instrument for measuring the density and weight for a fluid whether gas or liquid. Its body is made of hollow tube with a widened bottom to which a weight is attached. This weight, usually lead or mercury, keeps the instrument upright when it is placed in the substances to be measured. The hollow tube narrows upward into a graduated road or stem.

The density of the liquid is determined by reading where the scale penetrates the surface of the liquid. This instrument is based on the principle of Archimedes, which states that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid, this is also known as the principle of buoyancy. Since the weight of aerometer is fixed, it is possible to measure the density and weight of a fluid based on how deep the device sinks in the elements.

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