COVID widens digital divide, but cuts e-waste

Consumption of electronic and electrical equipment at the start of the COVID-19 pandemic fell in low- and middle-income countries by almost a third, according to a UN report, despite a growing need to be connected with the ...

Use of PFAS in cosmetics 'widespread,' new study finds

Many cosmetics sold in the United States and Canada likely contain high levels of per- and polyfluoroalkyl substances (PFAS), a potentially toxic class of chemicals linked to a number of serious health conditions, according ...

Adapting laboratory techniques for remote instruction

The COVID-19 pandemic forced instructors to adapt their courses for online learning. Laboratory courses were particularly difficult due to lack of access to specialized equipment for remote learners. To overcome this challenge, ...

Galileo satellites' last step before launch

Europe's Galileo satellite navigation constellation is set to grow. Later this year the first two out of 12 "Batch 3" Galileo satellites will be launched by Soyuz from French Guiana. Their last step on the way to launch is ...

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Tool

A tool is a device that can be used to produce an item or achieve a task, but that is not consumed in the process. Informally the word is also used to describe a procedure or process with a specific purpose. Tools that are used in particular fields or activities may have different designations such as Instrument, Utensil, Implement, Machine, or Apparatus.

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