Friday, July 3, 2020
Home Science & Technology Scientists Unveil Revolutionary 'Invisibility Cloak' that can Protect Buildings From Earthquake

Scientists Unveil Revolutionary ‘Invisibility Cloak’ that can Protect Buildings From Earthquake

November 23, 2016: To protect buildings from earthquakes, scientists are developing large structures which are inspired by ‘cloaking’ materials for sound and light.

Much like sound and light, Earthquakes too travel in waves. Previously, scientists have designed materials with internal structures that interfere with the propagation of light and sound.

NewsGram brings to you current foreign news from all over the world

Recently, the researchers at the Imperial College London in UK with collaborators in France are trying to make larger versions of these structures, and that could be used to control the propagation of earthquakes.

Trees act as resonators, and they oscillate at certain frequencies, even at long wavelengths.
“In the right arrangement, the interaction of resonating trees can redirect the energy of seismic waves deep into the soil, reducing damage.”

Researchers said,” This approach is based on metamaterials, artificial arrangements of resonators with unusual electromagnetic properties.”

NewsGram brings to you top news around the world today

Metamaterial or ‘invisibility cloaks’ have already been used to make tiny objects invisible to the eye by redirecting the light waves. Recently, larger versions could be created to emulate the resonance of trees and make the buildings ‘invisible’ to earthquakes.

According to PTI, Professor Richard Craster, Head of the Department of Mathematics at Imperial said,”Wouldn’t it be great if we could surround a historic castle or a nuclear power station with a metamaterial, so that when the seismic waves come at it they are sent around or diverted into the ground.”

“The building would remain perfectly still, not damaged. This is what we want to do,” said Craster.

Dr Andrea Colombi, also from Imperial, with Craster and colleagues, demonstrated how a dense forest behaves as a natural seismic metamaterial.

By generating the vibrations from a crane and by measuring the effects with seismometers, they found out that the resonating trees do offer local protection against surface waves of certain frequencies.

Check out NewsGram for latest international news updates

Researchers saw, in a natural forest, the irregular height of trees and the gaps between them offer protection against larger range of frequencies than that a uniform array would.
The trees would cover an even wider range of seismic frequencies, if they are arranged by decreasing height

Scientists call it a ‘metawedge’, which can be created with real trees or poles acting as artificial resonators.

Craster added.”Another thing we care about is, for example, the vibration coming from railway lines.”

prepared by NewsGram team with PTI inputs

STAY CONNECTED

19,002FansLike
362FollowersFollow
1,778FollowersFollow

Most Popular

Here’s How You Can Stay Away From Allergies During Covid-19

I n this unprecedented? the global crisis, health should be a top priority. With the onset of the monsoons and the rise in indoor pollution,...

India Reopens Visa Applications For Selected Countries

C omplying with the norms, regulations and relaxation of the Centre as well as the state governments and specific embassies, VFS Global is all set...

Women Entrepreneurship Program in India

W e are one of the biggest and fastest-growing economies, however, there is data that proves that if female employment rates were equal to male...

Covid-19 Conspiracy Theories Amplified by Social Media

People who get most of their news from social media like Facebook and YouTube are much more likely to believe conspiracy theories about the...

COVID-19 Accelerating Worldwide : WHO

The World Health Organization says 60 percent of the world’s 10 million COVID-19 cases since December came in the month of June – a...

Doctors Talk About Challenges they Face During the Pandemic

The year 2020 belongs to doctors and the healthcare workers who are risking their lives to fight the lethal, invisible virus Covid-19. While India...

Travel Virtually To These Places Amidst Lockdown

Travel is one of the most rewarding and enriching adventures one can indulge in. Every year, travel enthusiasts from across the world plan their...

Sustainable Kitchen Herb Gardening and it’s Benefits

Your small choice of starting a kitchen herb garden or nurturing the gardening habit can lead you to join the fight against global warming....

Recent Comments