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TO LIFT HEAVY OBJECT with LIGHT Mr.Piyushkumar V.Upadhyay Chemistry Department Shri R.P.Arts,K.B.Commerce and Smt.B.C.J.Science College.Khambhat,Gujarat,India

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TO LIFT HEAVY OBJECT with LIGHT Mr.Piyushkumar V.Upadhyay Chemistry Department Shri R.P.Arts,K.B.Commerce and Smt.B.C.J.Science College.Khambhat,Gujarat,India The International journal of analytical and experimental modal analysis ISSN NO: 0886-9367 TO LIFT HEAVY OBJECT WITH LIGHT Mr.Piyushkumar V.Upadhyay Chemistry department Shri R.P.Arts,K.B.Commerce and Smt.B.C.J.Science college.Khambhat,Gujarat,India. Email id: [email protected] Abstract:- Scientists have designed a way to levitate and propel objects using only light, which means objects of many different shapes and from micrometers to meters could be manipulated with a tight beam. With the new research, published in the journal “ Nature photonics”. The key is to create specific nanoscale patterns on an object‟s surface. This paltering interacts with light in such a way that the object can right it self when perturbed,creating a restoring torque to keep in the light beam.Thus,rather than requiring highly focussed laser beams,the object‟s patterning is designed to „encode ‟their own stability .The light source can also be millions of miles away.Atwater said “ There is an audaciously interesting applications to use this technique as a means for propulsion of a new generation of spacecraft.We were a long way from actually doing that,but we are in the process of testing out the principles”. Key words-: Levitation, Light beam,Manipulated,Micrometers, Nanoscale,Object,Photons, Spacecraft. Introduction:- Scientists have designed a way to levitate and propel object‟s using only light, by creating nanoscale patterns on the object‟s surfaces. Though still theoritical,the work is a step toward developing a spacecraft that could reach the nearest planet outside of our solar system in 20 years,powered and accelerated only by light.This means no fuel needed,just a powerful laser fired at a spacecraft from back on Earth. What is levitation? Levitation is the process by which an object as held aloft, without mechanical support in a stable position. About the research With the new research, published in the journal „Nature photonics‟, objects of many different shapes and sizes from micrometers to meters could be manipulated with a light beam. How will it happen? The key is to create specific nanoscale patterns on an object‟s surface. This patterning interact with light in such a way that the object can right itself when perturbed ,creating a restoring torque to keep it in the light beam.Thus,rather than requiring highly focused laser beam,the object‟s pattering is designed to „encode‟their own stability .The light source can also be millions of miles away.In theory,this spacecraft could be patterned with nanoscale structure and accelerated by Earth- based laser light.Without needling to carry fuel,the spacecraft could reach very high,even relativistic speeds and possibly travel to other stars. Breakthough that laid the ground work for this research.Decades ago,the developments of so-called optical tweezers enabled scientists to move and manipulate tiny objects, tiny objects,like nanoparticles,using the radiative pressure from a sharply focussed beam of laser light. Methods and materials:- Light has been put to work generating the same force that makes airplanes fly,a study appearing online December 5,in Nature protonics shows,with the right design,a uniform steam of light has pushed tiny objects in much the same way that an airplane wing hoists a,747 off the ground.The idea of moving objects with light is not a new one.Solar sails,such as those used by Japan‟s IKARDOS spacecraft,harness the Sun‟s radiation for propulsion,but researchers at the Rochesters Institute of Technology have shown that light can also generate the much more complex force known as lift-the same force that allows airplanes wings to hoist them aloft as they move through the air. Using only light,Australian researchers say they are able to move small particles almost five feet through the air.It‟s more than 100 times the distance achieved by existing optical ‟Tweezers“ the researchers say.The U.S.secreatary of Energy,Steven chu,,won his Nobel prize for work with optical tweezers.But,Anderi Rhode and colleagues at the Australian National University say their new laser device can move glass objects hundreds of times of times bigger than bacteria,and show them a meter and half (5feet) or more . “ One can levitate a ping pong ball using a steady stream of air from a hair dryer ,but it would not work if the ping pong ball was too big ,or if it was too big,or if it was too far away from the hair dryer and so on”. The key to the new research is in creating nano-scale reflection patterns on the surface of the object to be levitated.By giving the surface of the object the right patterns it will interact with the light beam in such a way that it will continually spin it self back into the light ,creating a feedback loop of sorts with the radiative pressure of light all the way to another star system.If it works,this technology would allow starships to travel at close to the speed of light and would open up a whole new possibilities for the future of sustained interstellar travel,trying to squeeze out the little bit of propulsion.We could from it,when all we really needed was a big flashlight. Though the theory is still untested in the real work,the researchers say that if it pans out ,it could send a spacecraft to the nearest star outside our solar system in just 20 years.As new and better experiments come online over the next few years,it is likely that tiny object being pushed around by light will be testing some big ideas. Volume XI, Issue XI, NOVEMBER/2019 Page No:47 The International journal of analytical and experimental modal analysis ISSN NO: 0886-9367 Results and discussions:- When a blue laser light is sent above an object in a laminar beam,the object under the beam looses the weight .The results seems to indicate that the percentage of weight loss varies directly with the intensity of the amount of lumen of the light beam.Light beam can change the direction of the force of gravity, it follows to show that gravity is caused by something moving at the speed of light,that speed was confirmed by the discovery of gravity by LIGO. The technique allows you to manage an object located many kilometres away from you.This means that the control beam can move spacecraft.The technology has prospects on Earth-for example,it will accelerate the production of printed circuit board and other electronics. Another way to make objects levitate is to act on them with sound waves.A breakthrough in acoustic levitation was made by researchers from the UK.They learned to lift object in the air using ultrasound,bending around obstacles. When a light beam reflects or scatters off an object, the object will recoil.This so-called optical force is used,for example to trap glass beads in optical tweezers.Light can also exert force through the photoelectric effect,where preferential absorption of light on one sight of an object leads to a temperature difference that causes the object to move.The air molecules on the hot side heat up,and their collisions with the object deliever more momentum than those on the colder side,producing motion,as in the rotation of a radiometer (light mill). Experiments in air with an optical fiber that narrows down to a point,like a needle,when light is channelled through this tapered fiber,the amount that leaks out (the evanescent field) increase as you approach the tip.This escaping light generates the optical and photophoretic forces.As their light-interacting object,the team choose a hexagonally –shaped gold plate that was 10 micrometers across and 30 nanometers thick.The team titled their fiber down at a slight angle on top of 90 and placed the plate on top of the fiber,near the end.In multiple trials,the team send a broad spectrum light beam into the fiber and observed the plate sliding up the fiber,about the 20 micrometers or so. Photons have real mass and velocity ,then they have kinetic energy(KE).That KE comes from its linear velocity and its rotational velocity seen.It is the transfer of that kinetic energy,with impact force,that kinetic energy with impact force that allows multitudes of photons of light to heat and to push matter.The ability of light to apply pressure to object is known as radiation processure,which was first postulated in 1619 and proven 1900.This is the principle behind the solarsail,which uses light radiation pressure to move through space.Light is also capable of creating the more complex force of “lift” which is the force generated by air foils that make an airplane rise upwards as it travel forwards.In optical lift,created by a “light foils” the lift is created within the transparent object as light shines through it and is refracted by its inner surfaces.In the light foil rods a greater proportion of light leaves in a direction perpendicular to the beam and this side therefore experiences a larger radiation pressure. Conclusion:- People could lift very heavy objects,such as large stone and some heavy object with light .It can also help people to make other kind of physical work easier by using light beam.The way levers work is by multiplying the effort exerted by the users,specifically,to lift and balance an object,the effort force the user applies multiplied by its distance to the fulcrum must equal the load force multiplies by its distance to the fulcrum.Lifting operations are inherent to many occupations in the constructions industries.
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