Mon, Aug 21, 2017 | updated 11:18 PM IST

Is invisibility cloak on its way to reality?

Updated: Jul 16, 2016 09:42 IST      
Is invisibility cloak on its way to reality?

Washington D.C, Jul 16 (ANI): Invisibility cloak has hidden Harry Potter and hobbits from view and now, this sci-fi staple may be moving closer to reality!

Scientists at Queen Mary University of London (QMUL) have made an object disappear by using a composite material with nano-size particles that can enhance specific properties on the object's surface.

Researchers demonstrated for the first time a practical cloaking device that allows curved surfaces to appear flat to electromagnetic waves.

While the research might not lead to the invisibility cloak made famous in J.K Rowling's 'Harry Potter' novels quite yet, this practical demonstration could result in a step-change in how antennas are tethered to their platform. It could allow for antennas in different shapes and sizes to be attached in awkward places and a wide variety of materials.

Co-author Yang Hao said: "The design is based upon transformation optics, a concept behind the idea of the invisibility cloak. Previous research has shown this technique working at one frequency. However, we can demonstrate that it works at a greater range of frequencies making it more useful for other engineering applications, such as nano-antennas and the aerospace industry."

The researchers coated a curved surface with a nanocomposite medium, which has seven distinct layers (called graded index nanocomposite) where the electric property of each layer varies depending on the position. The effect is to 'cloak' the object: such a structure can hide an object that would ordinarily have caused the wave to be scattered.

The underlying design approach has much wider applications, ranging from microwave to optics for the control of any kind of electromagnetic surface waves.

First author Luigi La Spada said: "The study and manipulation of surface waves is the key to develop technological and industrial solutions in the design of real-life platforms, for different application fields.

Spada added, "We demonstrated a practical possibility to use nanocomposites to control surface wave propagation through advanced additive manufacturing. Perhaps most importantly, the approach used can be applied to other physical phenomena that are described by wave equations, such as acoustics. For this reason, we believe that this work has a great industrial impact."

The study appears in Scientific Reports. (ANI)

USA all set to witness the great American Solar eclipse

Updated: Aug 21, 2017 18:59 IST     

New York [USA], August 21 (ANI): People of the United States are all set to see a total solar eclipse, which will take place on Monday, 10.30 pm, according to Indian Standard Time.

Full Story >>

Washington D.C. [USA], Aug 21 (ANI): Soldiering in arctic conditions is tough, but it will not remain so for long now as a team of researchers is all set to all set to change the game.

Full Story >>

Washington D.C. [USA], Aug 20 (ANI): Through analysis of volcanic tracks, a team of researchers has found that hot spots like those that formed the Hawaiian Islands do not move as quickly as previously thought.

Full Story >>

New Delhi [India], Aug 19 (ANI): Vijnana Bharati's JNU chapter commenced with a Dr Vikram Sarabhai Memorial lecture, celebrating the National Remote Sensing Day in the university's School of Environmental Sciences (SES).

Full Story >>

Indian researchers discover two new species of earthworm

Updated: Aug 19, 2017 06:57 IST     

New Delhi [India], Aug 19 (ANI): A team of Indian researchers has discovered two new primitive species of earthworm in the Western Ghats mountain ranges in Kerala.

Full Story >>

New Delhi [India], Aug 18 (ANI): Two recent studies have highlighted effective ways of reducing antibiotic consumption without any disadvantage for patients.

Full Story >>

Japan introduces solar heat-blocking pavements

Updated: Aug 17, 2017 14:10 IST     

Tokyo [Japan], Aug.16 (ANI): The host city of Olympic and Paralympic Games in 2020, Tokyo is working on heat blocking methods during the summer.

Full Story >>

New Delhi [India], August 17 (ANI): The Fortis Foundation recently launched two charitable medical dispensaries at the Anubhavi Ashram in Haridwar, Uttarakhand and at the Aggarwal Dharamshala in New Delhi.

Full Story >>

Nagpur (Maharashtra) [India], Aug.15 (ANI): The public sector Oil and Natural Gas Coroporation (ONGC) has extended a support of Rs 100 crore to turn the vision of affordable world class cancer care facilities in Central India into reality.

Full Story >>

Are tidally-locked exoplanets more common than believed?

Updated: Aug 15, 2017 10:16 IST     

Washington D.C. [USA], Aug 15 (ANI): There's a possibility for a lot more exoplanets to be tidally locked, according to new research.

Full Story >>

Robots lend a helping hand to esophageal surgeons

Updated: Aug 13, 2017 05:25 IST     

Washington D.C. [USA], Aug 13 (ANI): Robots are no longer just useful tools to make life easy and convenient; turns out, some of them can offer key advantages in esophageal surgeries.

Full Story >>

Are USB connections putting your data at risk?

Updated: Aug 11, 2017 04:21 IST     

Washington D.C. [USA], Aug 11 (ANI): Turns out, USB connections, the most common interface used globally to connect external devices to computers, make snooping easy.

Full Story >>

Turns out, you can catch 'Science' bug from peers

Updated: Aug 10, 2017 07:17 IST     

Washington D.C. [USA], Aug 10 (ANI): According to a recent study, developing an interest in Science as is simple as sitting next to a bunch of students fascinated by the topic.

Full Story >>

Washington D.C. [USA], Aug 9 (ANI): During a walk near a reservoir in a small Japanese town, amateur collectors made the discovery of their lives - the first and oldest fossil bird ever identified in their country.

Full Story >>

Ocean's fastest shark at risk of being 'overfished'

Updated: Aug 09, 2017 01:46 IST     

Washington D.C. [USA], Aug 9 (ANI): Overfishing is putting the ocean's fastest shark at risk, according to a recent research.

Full Story >>

20-month-olds can understand difference between two languages

Updated: Aug 08, 2017 07:12 IST     

Washington D.C. [USA], Aug 8 (ANI): Are two languages at a time too much for the infant mind? According to a recent study, babies as young as 20 months can understand a lot more than you'd think.

Full Story >>

Washington D.C. [USA], August 7 (ANI): Researchers have developed a learning method to change cognitive function by manipulating connections in the brain.

Full Story >>

Kicking butts to the curb

Updated: Aug 07, 2017 00:57 IST     

Washington D.C. [USA], Aug 7 (ANI): Cigarette butts are more than mere litter and now, a team of scientists has found a way to pave over the big problem.

Full Story >>

Desert tortoises can't take heat of roadside fencing

Updated: Aug 06, 2017 13:55 IST     

Washington D.C. [USA], August 6 (ANI): US researchers have revealed that roadside fencing, which is meant to help desert tortoise, can actually overheat them leading to their death.

Full Story >>

Scientists unveil how brain works with the help of magic

Updated: Aug 02, 2017 14:58 IST     

Washington D.C. [USA], August 2 (ANI): To tap into brain's 'out-of-the box' thinking, scientists are now relying on magic tricks and illusions.

Full Story >>