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The Science and Technology of Tomorrow


The Science and Technology of Tomorrow

Today the majority of our energy comes from fossil fuels we find beneath the earth in the form of cool natural gas and oil We've seen a rise in renewable energy, but fossil fuels are still the main source and without them the economy would collapse But these are going to become harder and harder to find and extract in the efficient way Which way 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 power from solar energy Currently the cost of fossil fuels is going to rise and the cost of solar is falling once equilibrium is met market forces will do the rest and note that solar cells are actually not that efficient so to engineering options are to make them more efficient or Reduce the cost to make and install these in bulk these are two directions that research has gone Wind is another popular form of energy.

 But it will not be what supplies the bulk of energy for the world in the future I mean 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 electricity or power right now because 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 holds a fusion is what the Sun uses to create energy, but first. Let's make a very important distinction We have nuclear power plants right now, and when you hear about these and nuclear energy This is usually all reference to nuclear fission.

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Also when it comes to energy one thing they're considering is space-based solar power where hundreds of satellites in orbit would absorb radiation from the Sun and almost all hours of the day, and then send it down to earth But the trouble with this is that would be very expensive Prices that need to go down which brings us to the future of space travel Here's a rocket. This is a Space X rocket. I randomly chose to show, but when it comes to rockets in general typically by mass They're like 80 percent fuel 16 percent actual rocket and the rest is the payload which goes right here in the top This payload might be a satellite going into space that will provide safe government communications Or it could be supplies 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 big? 

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 speed the rocket needs to get to plans can already go fairly high But they go 600 miles per hour or 965 kilometres per hour Rockets need to go like 18,000 miles per hour or about 29,000 kilometres per hour to actually reach orbit and that costs more money now for most of history Rockets were launched into space and their multiple stages were burned up or landed in the ocean 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 cost a hundred million dollars for a company to build a rocket then some company wants to put their satellite in Orbit it'll cost them more than a hundred million in order for a profit to be made But if the rocket can be launched 10 times or something it could cost 20 million dollars per lunch and profit would still be made Space X is one company You've probably heard of that's made these we're their first stage or the lower part of the rocket is Detached during flight and comes back .

Thus saving the money from having to make a totally new one? Now this was oversimplified because the entire rocket is not reusable only 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 looked at or that have been trying to get things to space cheaply You could try and launching the rocket from higher up Using powerful lasers to propel the rocket and one very famous idea is the space elevator at A certain height above Earth objects in orbit will be in geostationary orbit Which means they orbit at the same rotational speed that the earth is spinning at? This means objects in that orbit are always above the exact same location on earth So imagine having something in orbit like that and you attach a really long cable from that object to earth and tied the cable so It's fixed or just imagine those white and red lines are just long cables, then it would all rotate together Now to put something in orbit It would literally just need to go up the cable like an elevator from basic math or physics.

 We know the actual speed something in rotation is moving at is the radius of its motion times the angular velocity or basically a multiple of rotations over time Omega is always the same as Earth's angular speed and unchanging But if you increase the radius or distance 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 way less power Now engineers 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 mean more potential for a moon base as well as a base on Mars Average people who aren't billionaires might be able to go to space in the future Also, this will allow for asteroid mining we're using equipment.

 We could collect various elements that are found in asteroids such as carbon water silicon and metals like iron and nickel These could have economic benefits here on earth through selling these materials however 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 driver less 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 big goals would be to put nanobots in our bloodstream that constantly Patrol for diseases or abnormalities to keep us healthy.

 Another, holy grail of this field is making nanobots that can assemble anything we need where you basically put in raw material to a machine And the nanobots can just make what you want by taking apart the raw material molecule by molecule 3d printing is also a big field where for example General Electric is used and  3d printing may also get to a point where we all have a 3d printer and people share files on the internet that you can Download and just use to 3d print something you need Entrepreneurs might make money off of making and selling these files that 3d print something unique and are useful for consumers.

 There are also be applications and printing organs to remove danger from transplants and plenty more To make this video I gathered information from various books such as physics of the future Astonish rise to the robots and a few more which all gives 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 books plus some more of my favorites if you're interested in buying and supporting the channel and Lastly before I go one reason for this video is people 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 make predictions I mean petroleum engineering will probably go down significantly as alternative energy becomes cheaper.

 But right now petroleum jobs 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 engineers It seems safe to say that computer engineers 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 funding 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 plenty of other scientists and engineers to maintain the plants You can see how some industries could die but others will be born it's more important that you stay Knowledgeable on future technologies and have a broad knowledge of them while also a deep level of knowledge in your field. 

This way you can prepare for any changes not be blindsided by big shifts in the industry For those going to college students unlikely any big field especially of engineering or science will die in the next few years in Fact according to the statistics most engineering fields 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 can only tell you so much But hopefully this is a start now. I'm gonna end 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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