According to foreign media New Atlas, scientists at the Tel Aviv University in Israel used thunderstorms as a springboard, thinking that they may have discovered a new renewable energy source. In laboratory experiments, the team was able to use only water and metals to generate voltage, and said that this raised the prospect of batteries, which can be recharged with nothing but humidity in the air.

"We tried to use a naturally occurring phenomenon: generating electricity from water," Professor Colin Price, who led the study, explained. "The electricity in a thunderstorm can only be produced by water at different stages-water vapor, water droplets and ice. The 20-minute cloud development is how we discharge from water droplets to a huge electrical discharge-lightning-about half a mile in length."

Price and his team tried to tap the potential of water droplets. Previous research has shown that water droplets can charge metal surfaces with friction. Similarly, other studies have shown that certain types of metals can generate charges due to air humidity. The team's experiments aimed to reveal how voltages are generated between two metals when they are affected by high humidity. When the air is dry, no voltage is generated. However, once the humidity level soars above 60%, the voltage starts to develop, and once the humidity starts to drop, the voltage will disappear again. These results were reproduced in experiments conducted under outdoor natural conditions.

"We tried to reproduce electricity in the laboratory and found that different isolated metal surfaces create different amounts of charge from the water vapor in the atmosphere, but only when the relative humidity of the air is higher than 60%," Price said. "This happens almost every day in Israel during the summer and every day in most tropical countries."

According to the researchers, experiments show that the surface can be charged to about 1 volt with moist air, and they say it is not far from actual use.

"If an AA battery is 1.5V, then there may be a practical application in the future: developing a battery that can be charged from water vapor in the air." Price said. "As a renewable energy source in developing countries, this achievement may be particularly important. Because in developing countries, many communities still have no access to electricity, but humidity has been around 60%."

The research was published in the "Science Report" magazine.

Woodworking Tools Doctorwood®

Woodworking Tools,Straight Hole Doweling,Wood Planer Edge Jig,Function Scriber Gauge

SHAOXING SUNWAY TOOLS & HARDWARE IMPORT & EXPORT CO.,LTD , https://www.sunwaytools.com