Robotics

Soft robots utilize humidity gradient levels to generate signals

A team of researchers at the U.S. Air Force Research Laboratory, Wright-Patterson Air Force Base, has developed a type of soft robot that can generate signals without using electricity. In their paper published in Proceedings ...

Energy & Green Tech

Defects in next-generation solar cells can be healed with light

Researchers have shown that defects in the molecular structure of perovskites - a material which could revolutionise the solar cell industry - can be "healed" by exposing it to light and just the right amount of humidity.

Energy & Green Tech

Water bottle for bike collects moisture from the air

Kristof Retezár, an Austrian designer, has come up with Fontus, which was designed as a self-filling water bottle for your bicycle. This device collects the moisture from the air, condenses it and stores it as safe drinking ...

Humidity

Humidity is a term for the amount of water vapor in the air, and can refer to any one of several measurements of humidity. Formally, humid air is not "moist air" but a mixture of water vapor and other constituents of air, and humidity is defined in terms of the water content of this mixture, called the Absolute humidity. In everyday usage, it commonly refers to relative humidity, expressed as a percent in weather forecasts and on household humidistats; it is so called because it measures the current absolute humidity relative to the maximum. Specific humidity is a ratio of the water vapor content of the mixture to the total air content (on a mass basis). The water vapor content of the mixture can be measured either as mass per volume or as a partial pressure, depending on the usage.

In meteorology, humidity indicates the likelihood of precipitation, dew, or fog. High relative humidity reduces the effectiveness of sweating in cooling the body by reducing the rate of evaporation of moisture from the skin. This effect is calculated in a heat index table, used during summer weather.

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