An expert has given a special reason for keeping an item in the supermarket. This design expert claims that supermarkets keep the goods in such a way as per a special strategy or trick that people can buy more and more goods from there. This is a kind of trap. He has given not one but many reasons for this and said that how the shopkeepers put so much mind into this work.

The way space research is expanding with increasing intensity, even scientists have started considering many imaginary things as possible. You must have heard the idea of stairs to heaven among these. Such things are heard a lot in myths, but would you believe that now an elevator to space is also going to be built. Yes, scientists say that space elevators are no longer a distant dream. And this can be seen only in two-three decades.

जिस तरह से स्पेस रिसर्च में गहनता बढ़ने के साथ विस्तार हो रहा है उससे कई काल्पनिक चीजें वैज्ञानिक तक संभव मानने लगे हैं. इनमें से स्वर्ग तक सीढ़ियों का विचार तो आपने जरूर सुना होगा. मिथकों में इस तरह की बातें बहुत सुनने के मिलती हैं पर क्या आप यकीन करेंगे की अब स्पेस तक क एलीवेटर भी बनने वाला है. जी हां वैज्ञानिकों का कहना है कि अब स्पेस एलीवेटर अब दूर की कौड़ी नहीं रहने वाले हैं. और ऐसा केवल दो तीन दशक में ही देखने को मिल सकता है.

यह विचार अपने आपमें कितनी भी गप्प सा क्यों ना लगे, वैज्ञानिकों का कहना है जल्दी ही स्पेस एलीवेटर धरती से स्पेस में चीजों और लोगों को ले जाते दिखने लगेंगे. इस तरह की तकनीक स्टार वार्स मूवी में दिखाई गई थी जिसमें लोग और जहाज स्पेस में बिना अंतरिक्ष यान के पहुंचाए जाते थे. इसी विचार को ए सर्टेन मैजिकल इंडेक्स नाम की जापानी एनीमेटेड सीरीज में भी दिखाया गया था

No matter how absurd this idea may seem in itself, scientists say that soon space elevators will be seen carrying things and people from Earth to space. This type of technology was shown in the Star Wars movie in which people and ships were transported in space without spacecraft. The same idea was also featured in a Japanese animated series called A Certain Magical Index

Experts say that no matter how absurd this idea may seem right now, it is going to happen soon and companies like SpaceX are working on technologies to send people into space. Many have also started selling tickets to the people.

Physics professor Stephen Cohen writes in Scientific American that people dismiss space elevators as science fantasy, but he thinks they will appear within two to three decades.

Cohen explains that a space elevator is a long cable that will connect a satellite from the Earth’s equator and this system will revolve around the Earth. In the Star Wars movies, space elevators became necessary due to the different environments of different planets. In fact, space elevators for Earth will save resources used in space travel.

Space elevators will result in savings in the overall cost of space travel. This will help in launching satellites, sending ships, and astronauts. More importantly, it can be a turning point for space tourism, which many companies are dreaming of. But at present scientists do not have the technology to make it. But this situation will not last long

Here are some recent space elevator projects:

• Project Ascensio This project uses cables attached to an asteroid in geostationary orbit to transport travelers and cargo. The elevator is lowered and lifted from the spaceport in the middle of the ocean to outside the Earth. 
• Tethers Engineers are starting to figure out how to build a space elevator with plain old titanium or aluminum. A tether that just hangs around in the upper atmosphere and rotates faster than the Earth is called a “Skyhook”. 
• Japan’s space elevator Researchers are working on a space elevator to minimize cost and environmental impact, unlike traditional rockets that consume massive amounts of fuel. 

According to arXiv.org, researchers say that a space elevator is possible with today’s technology. A conventional space elevator would consist of a cable anchored on the ground and extending beyond geosynchronous orbit, some 42,000 kilometers (26,098 miles) above Earth

Named Project Ascensio, the space elevator would have cables attached to an asteroid locked in geostationary orbit, and from here, the elevator is lowered and lifted up from the spaceport in the middle of the ocean to outside the Earth

Here are some companies that are working on space elevators:

• Obayashi Corporation This large construction company has been working on space elevators since 2012. They plan to begin construction in 2025 and have a proposal for a space elevator that can carry 30 astronauts and cargo by 2050. 
• LiftPort Group This company has been developing a space elevator project for almost two decades. 
• Edwards This company has been involved in groundbreaking research on space elevator cables’ structural.

A space elevator would use a counterweight to keep the cable taut and centrifugal force to hold the tether in space. The counterweight would be a heavy asteroid or rock placed beyond geosynchronous orbit, and anchored to a point on Earth’s equator. The counterweight would spin around the Earth, keeping the cable straight and allowing robotic lifters to ride up and down the ribbon

The elevator would move on the cable, using devices called crawlers, climbers, or lifters. The purpose of the space elevator is to provide a tether on which a vehicle could be lifted up into orbit. This would dramatically reduce the cost of reaching space and allow us to take very large payloads into space very easily, very safely. 

However, some sources say that available materials are not strong and light enough to make an Earth space elevator practical. Some sources expect that future advances in carbon nanotubes (CNTs) could lead to a practical design, while other sources believe that CNTs will never be strong enough. 

A feasible space elevator would have to be at least 35,786 kilometers (22,236 miles) tall. This is the height at which an object reaches Geostationary Orbit around Earth

According to HowStuffWorks, the space elevator proposed by LiftPort would be approximately 62,000 miles (100,000 km) high. 

A space elevator tether needs to be made from a material with strength of at least 50GPa (50000 MPa). Steel is not strong enough, but single-crystal graphene has a tensile strength of 130GPa (130000 MPa

According to a 2014 study, a space elevator could be built by 2035. In 2012, Obayashi Corporation announced plans to build a space elevator by 2050. Obayashi plans to begin construction in 2025 and use the space lift in 2050

The Japan Aerospace Exploration Agency (JAXA) and the Ministry of Education, Culture, Sports, Science and Technology Japan (MEXT) will collaborate to start SSPS testing in 2022. Obayashi Corporation plans to start building in 2025, and use the space lift in 2050

According to ScienceDirect, a space elevator could cost between $10–20 billion, or up to $100 billion for a human-rated design. 

According to Wikipedia, the Edwards proposal for a space elevator could cost around $40 billion, with $1.56 billion in operational costs over the first 10 years. Subsequent space elevators are estimated to cost $14.3 billion each. 

According to Bradley Edwards, the author of The Space Elevator, NIAC Phase II Final Report, the cost of building a space elevator is around $6 billion, with $4 billion in legal and regulatory costs. 

According to a 2019 study, a lunar space elevator could be built for around $1 billion using existing technology

Space elevators are 70% efficient, with 30% of liftoff mass surviving as a reusable tether climber. Space elevators are also more efficient than rockets because they use the planet’s reaction mass as the reaction mass, so the planet doesn’t need to go very fast. Rockets need energy to position and get the payload up to speed, as well as to throw the fuel backwards

A space elevator would use the Earth’s rotation to create an upward centrifugal force on the counterweight. The counterweight would be held down by the cable, while the cable would be held up and taut by the counterweight

The opposing forces of gravity and centrifugal force would reduce the stress on the elevator. The elevator would also need to be thickest just above where Earth’s atmosphere ends and space begins. 

The counterweight would experience a centrifugal force larger than the Earth’s gravitational force. The counterweight would be maintained in its orbit by an extra inward force exerted on it by the elevator cable

A space elevator would involve a tether anchored to the ground and stretching up into space. At the top of the elevator, a counterweight will serve to keep the cable taut. Centrifugal force will actually be responsible for holding the tether in space as the Earth rotates slowly

Yes, space elevators could make space travel easier. They could: 

• Reduce costs Space elevators could reduce the cost of launching payloads into space by eliminating the need for expensive rocket launches. The lifters can reduce launch costs from $10,000 to $20,000 per pound, to approximately $400 per pound. 
• Make space travel more accessible Space elevators could make space travel more accessible and affordable for a broader range of scientific, commercial, and exploratory missions. 
• Reduce space debris Space elevators could help reduce space debris. 
• Open doors to interplanetary travel Space elevators could potentially open doors to interplanetary travel and, eventually, settlement. 
• Be eco-friendlier Space elevators will be eco-friendlier than rockets and cheaper in the long run

A space elevator would make it easier to put people and objects into space by:

• Reducing costs A space elevator could reduce launch costs from $10,000–$20,000 per pound to about $400 per pound. 
• Being eco-friendlier Space elevators would be cheaper in the long run and more eco-friendly than rockets. 
• Being safer Space elevators could lift people and items into space more safely than rockets. 
• Using solar energy The climbing process could be powered by solar energy, so it wouldn’t require any onboard fuel. 

Please like subscribe comment your precious thoughts on universe discoveries full article source google