Wireless electric energy!?

 Wireless electric energy!?

• Transmit energy wirelessly? This is a dream as old as the discovery of electricity! Contrary to what one might believe, this field has not evolved much since the beginning of the 20th century, we all have in mind the fabulous experiments of Nikola Tesla. The principle, until now similar to that of the transformer, did not make it possible to transmit significant powers or to have a correct efficiency.

However, a method known since the 1960s, that of “resonant inductive coupling” which we use in this video, is at the origin of significant progress. A desk that charges the devices you place on it? It's not science fiction anymore!

• REGARDING THE EFFECTS ON HEALTH: in general we cannot say that electromagnetic waves present a danger for frequencies below the visible (for low powers, a few hundred Watts at most).

Higher frequencies come from very energetic photons and needless to say, ultraviolet, X-rays or gamma rays can be very dangerous.

What about microwaves? Those used by the famous eponymous oven and by your smartphones? The danger they pose is only a consequence of the fact that they can heat water molecules. You therefore need high power to speak of danger, and this would simply come down to overheating!

What is very important to note is that we don't even use electromagnetic waves in this experiment! It is simply a magnetic field, which is known not to have the slightest influence on biological cells unlike the electric field. To go into technical details, Maxwell's equations predict that there cannot be a magnetic field without an electric field from the moment these vary, but the configuration present in this video allows us to have only a field variable magnetic, the electric field being negligible. The demonstration here is as dangerous as a rotating magnet, we only produce a "variation of magnetism": if you have not eaten metal sheet for breakfast (which could cause a slight overheating) it There is a fortiori no danger!

Finally, know that some always strive to find danger where there is none. The image comes to us of a smoker using a hands-free kit because he doesn't want to be "irradiated", poor guy...

We cannot say that electromagnetic waves are new, the sun "irradiates" us like 100 telephones daily with photons 100 times more energetic. Radio was invented more than 100 years ago and it is high time to face the facts: more fear than harm :)

 Wireless electric energy!?

• Transmit energy wirelessly? This is a dream as old as the discovery of electricity! Contrary to what one might believe, this field has not evolved much since the beginning of the 20th century, we all have in mind the fabulous experiments of Nikola Tesla. The principle, until now similar to that of the transformer, did not make it possible to transmit significant powers or to have a correct efficiency.

However, a method known since the 1960s, that of “resonant inductive coupling” which we use in this video, is at the origin of significant progress. A desk that charges the devices you place on it? It's not science fiction anymore!

• REGARDING THE EFFECTS ON HEALTH: in general we cannot say that electromagnetic waves present a danger for frequencies below the visible (for low powers, a few hundred Watts at most).

Higher frequencies come from very energetic photons and needless to say, ultraviolet, X-rays or gamma rays can be very dangerous.

What about microwaves? Those used by the famous eponymous oven and by your smartphones? The danger they pose is only a consequence of the fact that they can heat water molecules. You therefore need high power to speak of danger, and this would simply come down to overheating!

What is very important to note is that we don't even use electromagnetic waves in this experiment! It is simply a magnetic field, which is known not to have the slightest influence on biological cells unlike the electric field. To go into technical details, Maxwell's equations predict that there cannot be a magnetic field without an electric field from the moment these vary, but the configuration present in this video allows us to have only a field variable magnetic, the electric field being negligible. The demonstration here is as dangerous as a rotating magnet, we only produce a "variation of magnetism": if you have not eaten metal sheet for breakfast (which could cause a slight overheating) it There is a fortiori no danger!

Finally, know that some always strive to find danger where there is none. The image comes to us of a smoker using a hands-free kit because he doesn't want to be "irradiated", poor guy...

We cannot say that electromagnetic waves are new, the sun "irradiates" us like 100 telephones daily with photons 100 times more energetic. Radio was invented more than 100 years ago and it is high time to face the facts: more fear than harm :)