Energy & Green Tech

Why is it so hard to make batteries smaller and lighter?

Flat coin cell batteries (the kind used in watches) have been around for decades. But the combination of solid and liquid components makes it very hard to see how the components fail inside these batteries.

Engineering

Solar cell material can assist self-driving cars in the dark

Material used in organic solar cells can also be used as light sensors in electronics. This has been shown by researchers at Linköping University, Sweden, who have developed a type of sensor able to detect circularly polarized ...

Engineering

3D insights into an innovative manufacturing process

3D printing can produce highly complex shapes. But printing ceramic objects with the help of a laser is a more difficult challenge. Now researchers at the Paul Scherrer Institute PSI have for the first time taken tomograms ...

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Microscope

A microscope (from the Greek: μικρός, mikrós, "small" and σκοπεῖν, skopeîn, "to look" or "see") is an instrument for viewing objects that are too small to be seen by the naked or unaided eye. The science of investigating small objects using such an instrument is called microscopy. The term microscopic means minute or very small, not visible with the eye unless aided by a microscope. Anton Van Leeuwenhoek's new, improved microscope allowed people to see things no human had ever seen before.

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