Thursday March 21, 2019
Home Science & Technology Scientists Un...

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

2
//
Representational image. Pixabay

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

  • Diksha Arya

    This is an amazing concept. If this works, it will be a boon to mankind.

  • Ruchika Kumari

    we all know earthquake make a huge devastation….hope this gonna protect buildings

Next Story

Chile Survives Through Major Quake With Little Damage

Chile is located along the so-called Ring of Fire, which makes it one of the most seismic countries in the world.

0
Chile
Boats lifted by an earthquake-triggered tsunami sit on a dock, in Coquimbo, Chile, Sept. 18, 2015. A magnitude 6.7 quake struck the city Jan. 19, 2018, but no tsunami was generated. VOA

A 6.7-magnitude earthquake has shaken cities on Chile’s northern coast. No damages have been reported so far, but Chile’s National Emergency Office ordered a preventative evacuation of a stretch of coast near the city of Coquimbo.

Chilean authorities said the quake didn’t have the characteristics that would generate a tsunami. The U.S. Tsunami Warning System also ruled out a tsunami.

The U.S. Geological Survey said the epicenter of the magnitude-6.7 quake was 15.6 kilometers (9.7 miles) south-southwest of Coquimbo, and had a depth of 53 kilometers. It struck at 7:32 p.m. local time.

Chile
Earthquake epicenter

A witness told Reuters there was minor damage to older buildings and power outages in the nearby coastal city of La Serena, a popular beach town about 400 kilometers (250 miles) north of Santiago.

“It felt very strong … the tourists were very nervous, but nothing serious happened,” Camila Castillo, a receptionist at a hotel in La Serena, told Reuters.

Chilean miner Antofagasta Plc said operations were normal at its Los Pelambres copper mine following the nearby earthquake.

Also Read: Amazon.com In Talks With Chile To Create A Ground For Developing Artificial Intelligence

Chile is located along the so-called Ring of Fire, which makes it one of the most seismic countries in the world.Chile is located along the so-called Ring of Fire, which makes it one of the most seismic countries in the world. An 8.8-magnitude earthquake and ensuing tsunami in 2010 killed 525 people. (VOA)