An invention from the UK features diamonds in the first-ever application of the gemstone in battery technology.

Promising to last thousands of years, the microwatt power sources are seen as the perfect solution to devices in environments where neither changing batteries nor carrying around extras are options.

Developed by the University of Bristol in partnership with the UK Atomic Energy Authority (UKAEA), the battery contains a radioactive isotope of carbon called carbon-14.

Isotopes are forms of chemical elements with the same number of protons but a different number of neutrons. Some are stable, but those that aren’t are radioactive and emit radiation as they decay.

In the battery, a radioactive carbon-14 isotope is encased inside a shell of diamond, the hardest substance known to m

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