Eternal batteries based on nanodiamonds and radioactive waste. Free Technical Library News

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Eternal batteries based on nanodiamonds and radioactive waste

03.12.2016

Physicists and chemists at the University of Bristol have created a prototype of "eternal" batteries, consisting of artificial diamonds and radioactive waste. Scientists placed radioactive materials inside synthetic diamonds, which made it possible to generate electricity. According to the developers, this fuel cell does not emit harmful substances, has no moving parts and does not require maintenance. At the same time, these batteries can solve the problem of nuclear waste disposal.

At the presentation of the new development, a battery prototype was presented, in which nickel-63 was used. At the same time, it is reported that the use of carbon-14 is also planned to increase efficiency. This substance is found in graphite rods used in nuclear power plants and nuclear reactors.

Carbon-14 was used because the characteristics of this radioactive nuclide make it completely safe when placed inside a diamond.

Experts say that such batteries can last 5730 years. After that, their charge will be reduced by half.

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Chopsticks change her taste 08.08.2018

A group of researchers from different countries have developed chopsticks that can change the taste of a dish to a more sour or salty one.

The electrodes installed along the edges of the bowl that comes with the chopsticks are responsible for changing the taste. Cutlery is also an electrode. They are interconnected by a board and a battery. Unusual dishes are equipped with an indicator that recognizes the taste of food.

According to the developers, in order for the brain to perceive food as sour, stimulation with a current strength of 180 μA and a duty cycle of 70% is supplied through the electrodes, as salty - with a current of 40 μA and a duty cycle of 20%.

The novelty has already been tested by more than 30 volunteers. According to the participants of the experiment, the taste buds really obeyed the signals of the electrodes.

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