Before we talk about these forces, let's go over some very basic physics. First, there is the gravitational force.
On the diagram, this appears as mg where m is the mass of the human flier and g is the gravitational field. On the surface of the Earth, the gravitational field has a magnitude of about 9. But what do forces even do? The most basic force-motion relationship says that the total vector force the net force on an object is proportional to the object's acceleration.
That means that for a pilot to hover in place, the total force must be zero. If the net force is in the upward direction, the human will accelerate upward. Since we need the net force, let's write the net force as the following equation:.
But if you don't change the jet thrust, how can you go from hovering to accelerating upward? The key is the thrust angle of the jet arms. Let's say the pilot is in hovering mode. That means that the net force in the y-direction must be zero. Note: When we are talking only about the components of forces, they are one-dimensional and thus not vectors.
So, for this hover we have 4 forces in the y-direction. There is the back thrust and gravity—but then there is a component of vertical force from the two arm jets.
Let me draw just one of these arm jets. Any vector force can be split into separate forces. It's useful to break a force into a part that is pointing in the x-direction and a part in the y-direction. Also you can do the z-direction since real life is in 3D. Since x and y are perpendicular to each other, these components form the sides of a right triangle. That means that you can find the magnitude of these component forces by using that trigonometry stuff you learned in middle school.
The x- and y-components of the force depend on the jet engine thrust angle. Big deal, right? Yes, it's a big deal. Now you can see how to accelerate upward. You would need more vertical thrust. Without changing the jet engine throttle, you can just pull your arms in closer to your body.
Now there is a going to be a net upward force and you will accelerate. You can see Tony adding to all that technology. He loses his voice assistant Jarvis in the creation of Vision, but then he turns to another voice assistant in Friday.
That voice assistance also evolves. Her language and accent is very Irish. She even uses Irish slang. In order to use things, we need to touch them. Even with the amount of voice control we have at our disposal now, the first Iron Man movie from shows how that could develop even further. It provides a glimpse at the future and how technology could work for us.
In addition it shows how we can train such technologies to work with us. And then Stark can deploy the suits as drones, lots of drones, using the house protocol in Iron Man 3. You have the Iron Legion from Age of Ultron , which are drones.
Ultron himself is able to command drones. If you produce something like this, they all want to use it for defence. Particularly the companies, corporations and countries that are pursuing this. The big countries who have the big budgets. For instance, the U. It was designed as an exoskeleton suit to be worn by soldiers during missions. However there is a fatal flaw with the technology.
Or the TALOS suit, which cost millions of millions of dollars and never reached the capability they promised. It was incorrectly promoted as the Iron Man suit, which set expectations way too high. The expectations placed on these projects are just immense, perhaps due to how we see exoskeletons in the films.
It is not. Fundamentally the cost of building such technologies requires a huge investment with absolutely zero guarantee of a return on that investment. When NASA was founded in the late s, the agency scored numerous successes in the development of new propulsion technologies and in sending missions to space to explore the Earth, the Moon and further afield. In some ways yes, there needs to be healthy competition in the development and innovation of any new technologies.
I would hope that these motivations are fundamentally ethical. Perhaps it will help to protect soldiers. It could be used to help in the rescue of people from warzones. It might also be a protective healthcare device that monitors the body of the wearer, and helps them. Astronauts wear suits in space. The primary aim of the suit is to keep them alive and protect them. The Iron Man suit — while Tony Stark uses it to fight bad guys and when he is in conflict — is also designed to keep the wearer alive.
I hope that any suit will be built in an ethical way, so my hope is that this will be built as a medical device. But then you have to manage, store, and protect any biometric data that is collected using the suit in the right manner.
Who collects it? How is it used? Or look at the voice assistant controls. The voice assistants used by Tony Stark are examples of very biased systems. In the real world, voice assistants such as Siri or Alexa are trained by people with inherent biases. You need to make sure that any technology you develop includes contributions from scientists, engineers, designers, and importantly ethicists, throughout the process. Tony Stark is not an ethicist — far from it.
But he becomes more ethical, a little more forward-thinking about his suits. Therefore, the suits are biased in terms of their use. This indicates that by the time we reach Avengers: Endgame, Tony Stark is building technology anyone from the Avengers anyway can wear. In reality, for Steve Rogers or anyone else for that matter to use the suit they would have to train for hours in the laboratory with the technology.
And then for anyone from any country to be able to use the suit, the voice assistant would have to be trained in multiple languages and have been trained with data from multinational backgrounds. The aim should be a universal voice assistance that can adapt to slang from different cultures and countries. But do we need a generic, multinational voice assistant? Do we need this kind of voice control? Take Alexa for example, I have friends in Ireland who use Alexa a lot.
But my concern is that it is a very unethical system. It helps you pick your film and gives you the best options for your pizza, but where does that data go?
Who has it? What is it used for in future? As entertainment, I like watching those films. But the problem I have is when something is developed, in topics such as artificial intelligence or genetic engineering, people immediately reference the films that feature imagined, with all the negative repercussions. Many elements of the media seem to be preoccupied with generating instant fear in society, rather than reporting the veracity of the story.
The same goes for the Iron Man suit. When people talk about a flying suit or when the media write a story about a flying, personalized technology, some of the principle analogies relate to the Iron Man suit.
For those seven months I was eating, drinking and sleeping superhero films and scientific papers. In 6 to 10 years, they expect to be able to power the suit with its own internal power supply. The most limiting factor is battery technology, but it is getting better. We would have trouble with finding a power source and would need to recharge frequently. This is actually okay, because the Mark 1 had the exact same issue! The Mark 1 used "transistors" capacitors they meant possibly? Unfortunately, it ran out of juice very often.
Still, so far, so good. As I stated before, we can't have flight like the Iron Man from the movies, but the Mark 1 did not have that either. Supposedly, it was able to make short jumps or bursts of flight using "compressed air. The military designed a series of "jump jets" or "rocket belts" that used a highly concentrated mix of hydrogen peroxide and a catalyzing agent to create jets of high intensity steam that can allow a person to fly mostly vertically, which is just what the Mark 1 did!
Some other models used liquid nitrogen instead. Either one can be deadly if the fuel tank ruptures. Okay, so that is obviously very cool, but with a flight time measured in seconds and a world record of only ft this will not do for a superhero or a soldier.
In this video, we see the device climb to feet and deploy an emergency parachute at ft. This was actually flown by remote control in a chaser helicopter with a dummy, but that also shows how a navigation computer or assistant could help with flight in an emergency.
The flight system is bulky, but it could be attached to the XOS and then used to enter hostile territory. After you arrive, you park it somewhere inconspicuous and then move in to deal out some Iron Man justice. Just don't forget where you parked it. Lastly, if that was not enough for you flight enthusiasts who want to truly soar like a superhero or jet as opposed to a tiny helicopter, there is a last option.
Yves "Jetman" Rossy has pioneered a wearable jet flight pack. It has the drawback that it is not powerful enough to reach flight altitude on its own, but once in the air, it can perform an impressive flight.
As daring innovators like these continue to create amazing devices, it is only a matter of time before some type of human scale personal flight system is possible. Yes, it does have a small 10 ft long chaser boat and does not fly very high, but it could allow for some useful tactical advantages.
This thing even runs on normal fuel.
0コメント