The Science and Technology of Tomorrow (Part 2)

Today a majority of the members of our power comes from fossil fuels we find beneath the earth in the form of cool natural gas and lubricant We’ve seen a rise in renewable energy resources, but fossil fuels are still the main source and without them their own economies would crumble But these are going to become harder and harder to find and extract in the efficient practice Which course I’ll turn the forms of energy are going to take over Solar is one alternative That’s becoming more and more popular although it is more expensive to get capability from solar energy Currently the cost of fossil fuels is going to rise and the cost of solar is falling once symmetry is met market forces-out will do the rest and note that solar cells are actually not that efficient so to engineering alternatives are to attain them more efficient or Reduce the cost to make and install these in majority these are two tendencies that study has led Wind is another favourite sort of energy But it will not be what equips the bulk of energy for the world in the future I imply it can only work when the wind blows and they can only generate so much during this time But there’s a form of energy that doesn’t supply any of our energy or power right now cuz science is not there yet But if we figure it out it could solve all energy problems and that is nuclear fusion, and this is hopefully what the future braces a fusion is what the Sun uses to create energy, but first.Let’s make a very important distinction We have nuclear power station right now, and when you be informed about these and nuclear energy This is usually all reference to nuclear fission. This is where uranium atoms are divided and when they’re split They create a lot of energy that we can use and send out to homes and occupations And “its good” because when you do that You don’t appoint greenhouse gases, which is good for the environment of course? So why don’t we are only have nuclear power plants? Well one large-hearted thing is they leave behind a lot of nuclear waste a conventional reactor can create 30 tons of nuclear waste a year that can remain radioactive for millions of years This is so dangerous that we have to keep them in special chill ponds this offsets nuclear power plant meltdowns likewise Catastrophic and there have been some in the past such as Three Mile Island or Chernobyl nuclear fusion is different though It’s about Fusing two atoms instead of dividing one and these are normally hydrogen atoms where the two things you identify on the left are just isotopes of hydrogen and this releases a lot of energy This is also much safer than fission, but achieving.This is not easy to do Imagine this you have two gondolas each with very strong magnets on them They have the same magnetic drag, so they oppose one another, but there’s some bolt Where if you do manage to get the cars close the latch braces them together so strongly that they don’t come apart “Thats one” big obstruction of synthesi hydrogen atoms repel each other a lot until they get Exceedingly close hence when the Sun is able to create nuclear fusion their gravitation so intense, but now on earth It’s a different story But again when you do fuse two atoms it exhausts a ton of energy in fact fusion handouts ten million times more energy than gasoline pound-for-pound an eight ounce glass of water contains the energy of 500 thousand barrels of petroleum And we could potentially harness the issue of fusion power is it’s hard to do though No one have already established an operating fusion power plant and scientists all over the world are trying to unlock this potential energy source in the US there’s the National Ignition facility where they have over a hundred giant laser rafters that flaming down a passageway and Focus on a small pellet sending it to around 100 million grades which handouts the influence of synthesi in France at the International thermonuclear experimental reactor They create a thin ring of plasma that is captured due to a magnetic field then they heat it consuming various procedures Which starts to cause the plasma protons to start fusing? There are many other ventures out there are big-hearted labs, and if you’re looking to go into a orbit like physics This is something you could potentially do now one last thing about fusion is that we’ve done it in fact sow it at 14 years old and it can be done for around three thousand dollars exactly Going the right material So why isn’t it powering your residence right now because these experimentations have all been net negative It took more energy to fuse the atoms than was exhausted I entail big-hearted ventures abusing things like beings lasers And those take a lot of power and the fusing of atoms need to create more This might not come up for another few decades But considering this method of energy will be safe produce more intensity than any other source be cheap and not harm the environment People are hopeful for it to become reality for soon Now let’s move on to superconductors If you ever thought about having a car that can hover above the grind and cros well over a hundred miles an hour While utilize minimum gasoline this might be our best Just remember that most of the ga in your automobiles used to overcome the force of friction on the road if the road was Perfectly smooth ice and you could get up to rushed you could just cruise to your Destination that is assuming the route was completely straight though, but you get the idea, and this is where superconductors are now in over 100 several years ago we found out that mercury loses all electrical resistance aka becomes a Superconductor when cooled to time four positions above ultimate zero or four Kelvin this signifies electrons can move around freely with no friction Unlike in your electronics that get hot due to that friction High-temperature superconductors have also been discovered since then but mention higher temperatures intends like 138 Kelvin or minus 135 measures Celsius so a number of problems with precisely coming and keeping a material as a Superconductor is we need to have a serious cooling system to maintain those temperatures This is why scientists are looking into room-temperature superconductors That would change the world but currently they do not exist although we can easily see what they will do for Example when it comes to transmission lines to deliver power to our dwellings up to 30% of energy produced is consumed due to friction in The cables which also represents electrical power plants need to be closer to our residences That’s increasing the danger of nuclear power plants, but with superconductors those losses disappear and our electric money goes down significantly Room-temperature superconductors would also be capable of producing super magnets that can lift gondolas or even learns above the dirt and this is due to How magnetic field rows bunch up since they cannot penetrate a superconductor this creates a cushion that can hold up the objective in the future we might have arteries made of Superconductors allowing autoes and develops to flit above the grind with such little friction that even a breeze could get them started there at present there magnetic levitation instructs that use magnets to levitate but the economies of these have prevented them from being adopted all around the world and superconductors might reform all of us Last century was considered the age of electricity that procreated new technology possible Superconductors may soon open up the age of magnetism Also when it comes to energy one thing they’re considering is space-based solar energy where hundreds of satellites in orbit would assimilate radioactivity from the Sun and almost every hours of the day, and then send it down to earth But the trouble with this is that would be very expensive Toll that need to go down which delivers us to the future of space travel Here’s a rocket.This is a SpaceX rocket. I haphazardly chose to show, but when it comes to rockets in general generally by mass They’re like 80 percentage ga 16 percent actual rocket and the rest is the payload which goes right here in the top This warhead might be a satellite going into space that will provide safe government communications Or well equips for astronauts at the International Space Station It’s normally the purpose of the launch so yes the actual cargo of the rocket is a very small part of it volume wise So why I Rockets so large-scale? Well because they need to hold a lot of fuel and why is this because the Rockets have to go fast Remember going into orbit is not expensive because of how high you have to go It’s because of the rush the projectile needs to get to schedules can already go fairly high But they get 600 km / hour or 965 kilometers per hour Rockets need to go like 18,000 miles per hour or about 29,000 kilometers per hour to actually reach orbit and that costs more money now for most of history Rockets were launched into space and their multiple stagecoaches were burned up or territory in the oceans and seas and never used again And this is one reason why it costs around 10 thousand dollars on averages into pound into space one thing being worked on a change this is Reusable rockets if it expense a hundred billion dollars for a company to build a rocket then some company is intended to put their spacecraft in Orbit it’ll cost them more than a hundred million in order for a profit to be made But if the projectile can be launched 10 days or something it could cost 20 billion dollars per lunch and profit would still be made SpaceX is one company You’ve probably heard of that’s made these we’re their first stage or the lower end of the projectile is Detached during flight and comes back to earth and territory standing up to be used again Thus saving the money from having to make a totally new one? Now this was oversimplified because the entire rocket is not reusable simply certain parts are plus You got to refurbish the used rocket as it.Just went into space, so it’s not like it’s all good to go back immediately It needs to be fixed up a bit But there are other methods being look back or that have been trying to get things to space inexpensively You could try and launching the rocket from higher up Using powerful lasers to spur the rocket and one very famous plan is the space elevator at A sure-fire stature above Earth objectives in trajectory will be in geostationary orbit Which means they orbit at the same rotational rapidity that the earth is revolving at? This represents objectives in that arena are always above the exact same locating on earth So imagine having something in trajectory like that and you append a really long cable from that object to earth and held the cable so It’s fixed or just imagine those white-hot and red indications are just long cables, then it would all rotate together Now to articulate something in trajectory It would literally really need to go up the cable like an elevator from basic math or physics We know the actual speed something in pirouette is moving at is the radius of its motion times the angular velocity or mostly a numerou of gyrations over term Omega is always the same as Earth’s angular fast and unchanging But if you increase the radius or interval from the center of rotation by going up the elevator you increase your velocity Which again is the thing you need to truly get to orbit, but this takes channel less strength Now technologists and scientists still need to figure out the material That would be used for such a cable plus of course there are many concerns with how long it would need to be safety concerns and more, but who knows what the future has in store when it comes to this Cheaper access to space would entail more potential for a moon base as well as a basi on Mars Average people who aren’t billionaires might be able to go to space in the future Also, this permitted for asteroid quarrying we’re utilizing material We could compile various elements that they are in asteroids such as carbon water silicon and metals like cast-iron and nickel These could have economic benefits now on earth through selling these materials nonetheless It is assumed that these elements will likely be used to continue to settle space and increase how fast we explore the solar system Now there are of course so many more technologies that will be here in the future that didn’t talk about Some include the driverless car will you’ll be able to drive a car while at the same time Doing things like going on the internet through the use of your contact lenses or glasses in Nanotechnology one of the large-scale points would be to situated nanobots in our bloodstream that perpetually Patrol for cancers or irregularities to keep us healthy Another, holy grail of this field is constructing nanobots that can assemble anything we need where you mostly put in raw material to a machine And the nanobots can only build what you miss by taking apart the raw material molecule by molecule 3d publishing is also a big field where for example General Electric is using it to produce parts that are more lightweight Thus saving millions of dollars? 3d reproducing may also get to a degree where we all have a 3d printer and parties share enters on the internet that you can Download and just use to 3d magazine something you need Entrepreneurs might make money off of making and selling these files that 3d photograph something unique and are useful for buyers There are also be applications and reproducing parts to remove danger from transplants and slew more To make this video I gathered information from various notebooks such as physics of the future Soonish rise to the robots and a few cases more which all utters so much more detail on all these fields that just going to get into I’ll provide a link below to the major prep Amazon store where you can find all those bibles plus some more of my favourites if you’re interested in buying and supporting the channel and Lastly before I go one reason for this video is beings asking me What fields of science or engineering? Will and won’t be around in the future and it’s safe to say that not many people know what will happen We could only become prophecies I entail petroleum engineering is very likely to was down enormously as alternative vigour becomes cheaper But right now petroleum professions are increasing.It looks like space travel will not go away and with it getting cheaper Maybe they’ll open up more opportunities for aerospace architects It seems safe to say that computer designers software engineers and computer scientists. Have a safe future for now considering How much is going into software programming data storage artificial intelligence and so on? Physicists and even materials engineers might get more job opportunities as funded for superconductors is increased considering It will have a huge impact on the economy if nuclear fusion becomes a thing we’ll still need electrical engineers to handle all that electricity distribute and slew of other scientists and operators to maintain the embeds You can see how some industries could die but others will be born it’s more important that you stay Knowledgable on future technologies and have a broad knowledge of them although we are a penetrating grade of knowledge in your arena This space you can prepare for any converts not be blindsided by big shifts in the industry For those going to college students unlikely any big arena especially of engineering or science will die in the next few years in Fact according to the statistics most engineering domains are growing Yes Some don’t have nearly as much job Opportunities as others so make sure to do your own research on that I is impossible to tell you so much But hopefully this is a start now.I’m gonna terminate that video here again Links are below, and if you like the video don’t forget to comment like and subscribe and I’ll see you all next time.

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