Improving the power factor of an electrical installation consists of giving it the means to produce a certain proportion of the reactive energy it consumes itself by installing capacitors or capacitor banks. Power factor is the ratio of working power to apparent power. It measures how effectively electrical power is being used.
The Japanese Hayabusa2 spacecraft touched down on asteroid Ryugu and attempted to gather a sample of its rock to bring back to Earth. Analysis of the sample could shed light on the origins of planets or even on the possibility of life elsewhere in the solar system.
Sodium lignosulfonate (lignosulfonic acid, sodium salt) | C20H24Na2O10S2 | CID 44135711 -is used in the food industry as a de-foaming agent for paper production and in adhesives for items that come in contact with food. It has antimicrobial and preservative properties, and is used as an ingredient in animal feeds.
For those who deny that climate change is happening, it's an opportunity to undermine scientific consensus. How do you explain a cold winter in a world that scientists say is getting hotter? Weather and climate aren't the same thing, meaning you can expect harsher winters in a warming world.
Some states are seeing temperatures colder than the Arctic. In some regions of the country, temperatures are dropping below freezing, and some portions of the Midwest are experiencing temperatures below 40 degrees Fahrenheit and a mind-blowing wind chill of 75 degrees below zero thanks to the polar vortex.
I set out to build my own musical instruments, starting first with a drum made using a pig hide and maple wood. Andy George will discover what it takes to make everything from scratch. His mission is to understand the complex processes of manufacturing that is often taken for granted and do it all himself.
Curious to learn about PLA aka Poly Lactic Acid use in biodegradable plastics. Watch me explore the world of plastics and polymers by making a few basic plastics from biological sources I've collected before, and with the help of the Center for Sustainable Polymers at the University of Minnesota.
India has launched the world's lightest satellite ever to be put into orbit. Weighing 1.26kg (2.6lb), the Kalamsat V2 has been made by students belonging to a space education firm. It will help ham radio operators and inspire school children to become the scientists and engineers of the future, India's space agency ISRO says.
The hidden costs of the government shutdown, from small business loans to alcohol labels. Airport lines are long, national parks are being vandalized are signs of the 34 day partial government shutdown. Nine federal departments are closed, hundreds of government operations have been scaled back or stopped altogether.