This ring-shaped device transforms the human body into a biological battery

By portal-3

Este dispositivo en forma de anillo transforma el cuerpo humano en una batería biológica

Stretchy enough to be worn as a ring, bracelet or any other accessory that touches the skin, this new low-cost wearable device transforms the human body into a biological battery.

Has been developed by researchers at the University of Colorado at Boulder, and can generate about 1 volt of energy for every square centimeter of skin space.

Polyimine: an elastic material

The secret of its elasticity and ease of repair is in its base material: an elastic material called polyimine. If it breaks, for example, you can put the broken ends together and they will seal again in just a few minutes.

This also allows it to be completely recyclable, making it a cleaner alternative to traditional electronic devices: in a special solution that will separate the electronic components and dissolve the polyimine base; Each and every one of those ingredients can be reused.

Although the voltage it provides is very low, it could be enough to power electronic devices such as watches or activity bracelets.

It also takes advantage of a person's natural heat, using thermoelectric generators. to convert internal body temperature into electricity.

–
The news

This ring-shaped device transforms the human body into a biological battery

was originally published in

Xataka Science

by
Sergio Parra

.

Read More
12/02/2021
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We can now hear the oldest wind instrument sound: 18,000 years old

By portal-3

Ya podemos escuchar sonaba el instrumento de viento más antiguo: 18.000 años

The Marsoulas conch It is the oldest wind instrument of its kind. This large ornate seashell was discovered in the Marsoulas Cave, between Haute-Garonne and Ariège, in 1897.

According to carbon 14 dating of the cave, carried out on a piece of charcoal and a fragment of bear bone from the same archaeological level as the shell, it gave a date of around 18,000 years. And now we can hear what it sounded like.

symbolic object

The shell has been decorated with a red pigment (hematite), characteristic of the Marsoulas Cave, which indicates its status as a symbolic object. The tip of the shell is not accidentally broken, forming an opening 3.5 centimeters in diameter. Since the opening was irregular and covered by an organic coating, the researchers assume that it also carried a mouthpiece.

To find out what this instrument could sound like, researchers from the National Center for Scientific Research (CNRS), the Toulouse Museum, the Toulouse-Jean Jaurès University and the Musée du quai Branly-Jacques-Chirac hired a trumpeter who managed to do ring three sounds with it close to the notes C, C sharp and D. It you can listen below:

To date, flutes have only been discovered in earlier contexts of the European Upper Paleolithic and the conch shells found outside Europe are much more recent.

Here you have the 3D model of the shell to explore it at your leisure:

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–
The news

We can now hear the oldest wind instrument sound: 18,000 years old

was originally published in

Xataka Science

by
Sergio Parra

.

Read More
12/02/2021
Love0