Skip to main content

Scientists reveal all humans able to sense magnetic fields



Scientists believe that humans were once able to sense the Earth's magnetic field and use it for navigation purposes, just like many other living beings do, but eventually lost this skill. They suggest that it's possible to regain that skill once again, possibly with some kind of training.

A group of scientists, including a geophysical biologist, a cognitive neuroscientist and a neuroengineer, has found proof that the human brain is capable of detecting Earth's magnetic field despite previous conflicting results.

The results of their research were published on the website Science Alert. The discovery shows that humans haven't entirely lost the mechanism of orienting themselves using the magnetic field, which many other animals enjoy.

The researchers placed the experiment subjects on a simple chair set up inside a Faraday cage that filters out all outside magnetic fields and then they used the coils installed inside to generate an artificially controlled magnetic field inside the cage. Although the subjects of the experiment failed to feel anything, their brains, connected to an electroencephalography (EEG) machine, clearly responded, when researchers shifted the direction of the artificial field.

What is even more intriguing, according to the scientists, is that the subjects' brains filtered out "irrelevant" information about the field. For example, when the field was configured in a way, unnatural for Earth's magnetosphere their brains didn't respond at all.

The same happened when the field was configured to represent the southern hemisphere's magnetic field, while all the subjects lived in the northern one. The brain also ignores magnetic fields that are at least 25% stronger than the one generated by the Earth, meaning various electronic devices, generating such fields, can't affect the brain's functions.

The group of scientists suggests that the mechanism behind the ability to sense magnetic fields lies in cells' newly-discovered ability to form nanocrystals of the ferromagnetic mineral magnetite.

Such crystals, found in many organisms, as well as in human brains, essentially work as micromagnets and although the nature of their functions in cells has been poorly studied so far, theoretically it can be used to keep track of the Earth's magnetosphere, the researchers pointed out.

The discovery comes amid the news that the focal point of the Earth's magnetic sphere — the magnetic pole is constantly shifting from the Canadian Arctic towards Russia's Siberia at a rate of around 55 kilometres per year. Despite the relatively slow pace, the scientists have to update the magnetosphere's maps each year, because all people and devices that still use compasses, heavily depend on them since a compass arrow always points in the direction of the pole.

Last time, they were forced to issue a new version of the map earlier than scheduled — in mid-February instead of late in 2019.

Comments

Popular posts from this blog

Stephen Hawking's Final Book gives brief Answers to Big Questions

Stephen Hawking's final work was launched by his children on Monday which discuss issues from Existence of God to Time Travel and other big questions. His children completed his final book after he died last year.

Stephen started his book last year to answer the common question which he encountered many times from public. The title of the book is ''Brief Answers to Big Questions''.

His daughter, Lucy Hawking, said he was regularly asked for such question and this book contains his clear and most authentic answers. We all wish he was here to see it published, she added.

What are these big questions and what did he write answers to them?


Is there a God?How Did it All Began?What is inside a black hole?Can we predict the future?Is Time Travel possible?Will we survive on Earth?Is there any other intelligent life in Universe?Should we colonize space?How do we shape the future?Multiple challenges Stephen Hawking says the simplest explanation is that God does not exist and…

Russia Trying to Bring back Extinct Animals

A research facility is being settled in a region of Russia by Vladimir Putin at 4th Economic Eastern Forum which aims to study the remains and clone extinct animals like woolly mammoth, woolly rhinoceros, cave lion and breeds of long-gone horses of old times.





The investment sought for this project is 5.9Million USD.

The animals which could weight 6000 kg have been disappeared from that territory about 4 thousands years ago.

About 80% of the samples of the extinct animals with preserved tissue have been found in this region Siberia .  







Human flights to ISS will begin in 2019

NASA has confirmed that manned space flight will be carried by SpaceX and Boeing in the mid of 2019.SpaceX rocket for ISS will depart in June 2019 while Boeing spacecraft will go in August 2019.
It will be the first US mission since the retirement of the shuttle in 2011.NASA's astronauts are currently using Russian made Soyuz spacecraft and its contract will end in June 2019.NASA said on 4th of the October that it will give monthly updates 


Phil McAlister who is the director of commercial flights in NASA said in Blog that 

New Updates schedule is better but launch schedule may be uncertainHe also said these are new spacecraft and lot of engineering work has to be done before take off.

Back in 2014 both the SpaceX and Boeing received $6.8bn from NASA to build spacecraft that will take humans to ISS.

Boeing has said they will be ready for Orbital Flight Test in March 2019.
The Success of this manned space shuttle will be a great achievement of the commercial space industry, and NASA will …