In the US, developing a way to launch satellites into space by catapult

The American company SpinLaunch is working on a launch system for satellites and rockets, involving the use of a centrifuge, reports Lenta.ru with reference to TechCrunch.

SpinLaunch plans to use a centrifuge spinning at speeds up to 3000 miles per hour. Also, the catapult is able to provide additional power needed to transport cargo and missiles to exit the Earth’s atmosphere. A centrifuge transmits the impulse to a catapult that casts a load.

The publication notes that the projected device, which catapults the payload into space, will allow it to reach speeds of about 4,8 thousands of kilometers per hour. The design also allows the launch of a rocket in the centrifuge, which, having reached a certain height, carries out the expansion of the spacecraft to the required height.

SpinLaunch hopes that the cost of removing small satellites with a catapult will not exceed 500 thousand dollars. Thus, the company plans to compete with traditional hatching systems based on chemical engines.

The creation of an alternative launch system SpinLaunch requires 30 million dollars, by now the company has 10 millions. The American company operates in secrecy, access to its official website is password protected.

Comments

[Dimontius]

Yeah, either on a trampoline, or a railgun, or hyperloop. America is a leading startup country, but few survive.

[Andrey K]

Quote: Dimontius

... Yeah, either on the trampoline, or the railgun uh ... or hyperloop ...

Rogozin jinxed them

[Monos]

Rogozin in collaboration !!!

[Andrey K]

Quote: Monos

... Rogozin in co-authors !!! ...

Victor
So he will soar the geldings, with his patent

[Monos]

Andrey Evgenievich, my respect

Quote: Andrey K

So he will soar the geldings, with his patent

These cunning hookers themselves who they want to park. Even Rogozin does not break off anything.

[Andrey K]

Quote: Monos

... These cunning hookers themselves who they want to steal. Even Rogozin can’t break anything ...

I didn’t think about it, there are experts on verbiage of the extra class. He must remain with them.

[Falcond]

Rogozin generated the idea, and they realize

[keeper03]

Rogozin's dream come true!

[Vladimir16]

The publication notes that the designed device, which catapults the payload into space, will allow it to develop speed of about 4,8 thousand kilometers per hour.

The first cosmic speed will be a little more. Or did the Americans put a bolt on the laws of physics and if they need it, then they can also walk into space?

[Baloo]

Quote: Vladimir16

The publication notes that the designed device, which catapults the payload into space, will allow it to develop speed of about 4,8 thousand kilometers per hour.

The first cosmic speed will be a little more. Or did the Americans put a bolt on the laws of physics and if they need it, then they can also walk into space?

So I also thought about this, or were we taught the wrong physics at school?
And then an instant impulse of such a force can the satellite filling withstand, and even the body itself?

[spech]

And then an instant impulse of such a force can the satellite filling withstand, and even the body itself?

So with the flywheel problems, centrifugal forces will not break?

[bulvas]

Quote: Balu

Quote: Vladimir16

The publication notes that the designed device, which catapults the payload into space, will allow it to develop speed of about 4,8 thousand kilometers per hour.

The first cosmic speed will be a little more. Or did the Americans put a bolt on the laws of physics and if they need it, then they can also walk into space?

So I also thought about this, or were we taught the wrong physics at school?
And then an instant impulse of such a force can the satellite filling withstand, and even the body itself?

What are you reading inattentively:

The publication notes that the designed device, which catapults the payload into space, will allow it to develop a speed of about 4,8 thousand kilometers per hour.
The design also allows the launch in a centrifuge of a rocket, which, having reached a certain height, carries out the extra spacecraft to the required height.

And in general, I would not gossip over something that was not fully understood, as the Papuans at the sight of strangely dressed white people.

No stupider people are working with us, especially a private company

How many times have we been in the role of catching up

[Hagalaz]

I completely agree

Quote: bulvas

And in general, I would not gossip over something that was not fully understood ...

The ejection method for launching spacecraft has been described by many science fiction writers, far from being stupid. It is also well known that many of those fantasies have already become a reality. At the same time, it is foolish to expect that this method will suddenly take off in a ready-made form. Work started through mistakes and possibly failures, when they may well become commonplace.

[Nyrobsky]

Quote: bulvas

No stupider people are working with us, especially a private company

That is the whole point. Private traders need funding, and then ................ like Chubais - like "We are creative people, there was a plan, but there was no intent"

Quote: bulvas

How many times have we been in the role of catching up

Yes, not so much. In some ways, they jumped us, and in something they still cannot catch us. Yes, they generally "do not catch up" why Russia has not wanted to submit for a thousand years and breaks all the "nishtyaks" to the hegemons.

[bulvas]

Quote: Nyrobsky

Yes, not so much. In some ways, they jumped us, and in something they still cannot catch us. Yes, they generally "do not catch up" why Russia has not wanted to submit for a thousand years and breaks all the "nishtyaks" to the hegemons.

And without you all this is known, but the tradition of making fun of everything new, and then catching up with us is also not new.
Remember how they related to cybernetics (a corrupt girl ...), genetics, and how then they all caught up with it

As for private owners and financing - I will not even comment

[Andrey K]

Quote: Balu

... So I thought about this too, or did they teach us wrong physics at school? ...

Of course the wrong, the right physics depends on the size of the budget being mastered.
How many candy wrappers will be filled, such is physics.
The more the steeper the physical laws

[sharp-lad]

The most important question in this case: Will the centrifuge type catapult withstand the load?

[faradien]

Here, the question is probably not even in the centrifuge, it will remain on the earth, you can also ponder theoretically about strength, etc. But the devices themselves ... After all, chemical rocket accelerates them long enough with limited overload! And yet, after all, a variant with a missile launcher is offered Not, well, of course, if the rocket will have the strength of an artillery shell ... Only here is how much fuel there will be and what (!!!) and how much payload this whole thing will be able to bring ... Ah, dreams, dreams

[sharp-lad]

In my opinion, a more promising way is to bundle a heavy transport plane and a rocket to bring the payload into a low orbit.

[Kokarev Mikhail]

You shouldn’t be so. I thought about it myself. It is possible to shoot a small satellite 8km / s without problems, only who will change its trajectory. Therefore, I think that their idea is not bad: they will abandon the first and second stages, or TT accelerators and shoot less mass. But it still reaches a ton, a fucking centrifuge is necessary. Yab did not take, dumbly.

[faradien]

At the expense of the correction of the trajectory - a problem to the point! After all, the slightest inaccuracy and the apparatus in non-calculated orbit. And if, when launching a conventional rocket, it has a constant correction, then it is lost and then how it turned out. And if with the overclocking / correcting module to output, then this is a completely different song, much more difficult

[de_monSher]

Why not? Blast out the stupidity of kilometers for 10, and there his own engines will start working, and they will overclock ... another point, yes, there are a lot of questions. The very first question is - what design can stand such a thing? This will not be a blank, solid ...

[SRC P-15]

Quote: de_monSher

Why not? To mimic the stupidity of kilometers for 10, and there - his own engines will start working, and they will overclock.

At these 10 km, the “chucking” is easier and more profitable to lift on an airplane!

[ul_vitalii]

Quote: Vladimir16

The publication notes that the designed device, which catapults the payload into space, will allow it to develop speed of about 4,8 thousand kilometers per hour.

The first cosmic speed will be a little more. Or did the Americans put a bolt on the laws of physics and if they need it, then they can also walk into space?

We calculated that this speed would be enough to overcome the Earth's gravity, and then the brick would receive cosmic speed.

[Yngvar]

Clear business - a bolt! "Exceptional nation", they have the number Pi equal to 4!

[demo]

The source is not enough.
But most likely this is a catapult, for the momentum.
And then, all the same, the marching engine turns on.
It turns out that in 1 second the capsule should fly to a height of 1,3 km.
During this period of time, it is necessary to start the engine and bring it to its design capacity.
The main thing is not to lose momentum.
A very difficult task.
Starting the engine when the capsule is attached to the catapult means damaging the catapult.
Question about the size of this catapult?
And at what angle will the release be made.
Under 90 grams is a complex structure. And the sizes will be too impressive.
So from 45 to 75 grams.
Still very difficult.
I remember Belyaev (if he didn’t mix it up) described a spaceport in one of his novels.
There were used carts moving by means of an electromagnetic field.
The flying ships gained a certain speed and only then turned on the engine.
The landlords aligned speed with the trolley and somehow connected to it.
And so she stopped with the ship.

We'll see.

[Baloo]

Quote: demo

There were used carts moving by means of an electromagnetic field.

You mean the railgun?

[albert]

Quote: demo

I remember Belyaev (if he didn’t mix it up) described a spaceport in one of his novels.

CEC Star. Also Thought About This Book

[faradien]

The cyclopic structure will then be, kilometers in height

[SPACE]

Quote: Vladimir16

Or did the Americans put a bolt on the laws of physics and if they need it, then they can also walk into space?

Hollywood draws.

[ancestors from Don]

Quote: Dimontius

Yeah, either on a trampoline, or a railgun, or hyperloop. America is a leading startup country, but few survive.

This method is patented by the heirs of the Sumerians on the Maidan, hands off the invention.

[Chertt]

The American company operates in secrecy, access to its official website is password protected
My VK is password protected too,

[Alexander 3]

This is a slingshot along with a centrifuge. A slingshot is in a centrifuge, but what will they shoot? A ball on satellites? Maybe Trump is being prepared as an astronaut?

[Chertt]

Quote: Alexander 3

, and what will they shoot? A ball on the satellites? Maybe Trump is being prepared

Zvezdanuto not to get used to stripes, to throw any muck into space

[Lavrenti Pavlovich]

And if you load the feces into a centrifuge, then the entire United States can be fertilized.

[RUS96]

We all know how the laundry compresses in the washing machine, what pressure. And what will happen to the load with a rotation of 3000 miles per hour?

[sharp-lad]

And 3000 miles per hour at what distance from the center of the centrifuge?

[Nikolai Grek]

Quote: Dimontius

America is a leading startup country, but few survive.

oyyyyyy, oh well .... here we would immediately start yelling about drank and corruption ... but about Americans you are proud of it - startups and similar blah blah blah !!! do not be shy, the Americans are far from saints .. you can feel free to start shouting about the Americanos drank universal scale !!!

[Evdokim]

Quote: Dimontius

Yeah, either on a trampoline, or a railgun, or hyperloop. America is a leading startup country, but few survive.

They forgot about hyper-duper-super-mega slingshot on environmentally friendly perdilene.

[PalBor]

And you can kick the hedgehog under the ass.

[svp67]

In the US, developing a way to launch satellites into space by catapult

Here is the American response to Rogozin. I wonder what he’ll say now? And in general, something did not become audible to him .... Either the "third package is preparing", or he got down to business ....

[Russia]

It seems that the regime of silence before the elections, only Medvedev shows indefatigable activity.

[Mikado]

Sergei, but ten years ago I laughed at a joke about the first Chinese satellite, a huge slingshot and torn bellies .. but it turned out .. the idea of ​​a catapult does exist!

[Yngvar]

Well yes! More about the first astronaut and a thousand stokers on board ...

[dorz]

Quote: svp67

And in general, something did not become audible to him .... Either the "third package is preparing", or he got down to business ....

“Sanctions against Russia is an indicator of the strength of a country,” Rogozin concluded today. Thinks globally.

[svp67]

Quote: dorz

Thinks globally.

Still would. Vice Prime Minister, for now ....

[Thunderbolt]

Quote: svp67

Vice Prime Minister, for now ....

You think the increase will go?

[svp67]

Quote: Thunderbolt

You think the increase will go?

Alas, I’m not going to think about it ... In the meantime, they’re starting to take off the load

Russian Defense Minister Sergei Shoigu will head the board of trustees of the Advanced Research Foundation. In this post, he will be replaced by Deputy Prime Minister Dmitry Rogozin, who was relieved of these duties.

which in a bureaucratic language means a possible early resignation, it is possible that an increase. I think that he is worthy of the high rank of PENSIONER.

[Beby]

Interestingly, and what overloads will act on the output device, with this method of its removal?

[Svarog]

Quote: Beby

Interestingly, and what overloads will act on the output device, with this method of its removal?

With a person, they won’t let them in, they’ll just burst with such overloads ..

[dauria]

I wonder what overloads will act.

Divide the speed square by the 2nd length of the acceleration section. Count.

[grandfather_Kostya]

To deliver a box with electrodes or a box with bolts into orbit, the assembly of a space station is quite tolerable.

[Beby]

I have a suspicion that even they (bolts and electrodes, as well as screws) will suffer damage that is not compatible with their further operation ...

[K-50]

SpinLaunch is working on a centrifuge launch system for satellites and rockets

What can’t you imagine, since you don’t know how to build normal rocket engines. They would have sent them with a trampoline.

[Vadim237]

You don’t worry about them - they can do everything and liquid propellant rocket engine hydrogen - oxygen.

[BAI]

I don’t understand anything. The first space speed is 7,91 km / s = 28440 km / h, well this is not 4800 km / h. The USA has other laws of physics or journalists. as always, all messed up?

[Russia]

For a kick, this contraption is enough, and those big numbers are for space, and for the earth it's super duper hyper speed.

[Dezinto]

The idea is, of course, a brilliant one, for which it takes tons of fuel and five engines it turns out you can just shoot ........ Well, good luck, we wish you many years of development ..... and billions to nowhere.

[KVU-NSVD]

It seems not the first of April ....

[Herculesic]

Maybe immediately let the teleportator build, or at least an anti-gravity engine? What is there a catapult - you don’t have a budget for it, it’s not that big!

[Captain45]

SpinLaunch hopes that the cost of launching small satellites using a catapult will not exceed 500 thousand dollars.
Taki finished them Rogozin with his trampolines

[Piramidon]

Rogozin in court !!!! For the transfer of Russian research on the use of trampoline in aerospace technology

[REEKMAN]

But this is an interesting circus

[Under the dome]

Not bad, it’s good when there are private companies. Cheese to push a lot of mind is not necessary.

[rruvim]

By the way, this process is described in some detail in Neil Stevenson’s science fiction novel Semievie (Russian translation of 2015). In the notes, the author thanked NASA experts in consultations in writing the book. The Russians play a special role there - quite positive.

[Mestny]

This is not the first time from you about this crap. I hear.
The novel is written strictly in the spirit of tolerance, equality and research by British scholars.
From the first there are two lesbians who manage the space station - the last hope of mankind (who would doubt it), from the last absolutely crazy projects of survival in space for thousands (!) Years using modern technologies.
The novel begins with - oh, horror "- a global catastrophe, destruction ... of the Moon! (Homosexuals make a friendly moan) Which forces humanity to move into space in the next few years. As a result of a series of events, the founders of new humanity are several half-mad women who are obsessed with superiority of women over men, with helping them homosexuals, blacks, etc. Traditional men with white skin, the author dies directly in its entirety.
All this happens against the backdrop of such enchanting technical nonsense that the question arises - did the author hold in his hands at least something heavier than a pencil?
This could write an American blonde.
The author is a sick European Tolerast.

[rruvim]

Pancake! But 90% of the modern Anglo-Saxon "muddy" is sustained in this spirit. What to read only "Lives of the Saints"? I personally only FOR !!!
But you also read it. I completely understand their (Anglo-Saxon) worldview, and I wanted to “spit” on him. The phrase "the enemy needs to know" in the face seems commonplace. But we all in Russia use “Windows” or “Android” and at the same time we don’t really “spit”. So, what to read that "THERE IS ON THE MIND" is not shameful. Although it’s time for me to retire, I’m trying to read everything that comes from the WARHAMMER40K series, and Neil Stevenson just came to hand. And then, only because of the huge amount of technical details that interested me and in which I didn’t figure it out. And the fact that Thekla turned out to be a lesbian, and even chose a black woman as a friend, is on the conscience of the author himself.

[japs]

Now in a tolerant Western culture, the rise of multi-culturalism.
What is in the theater, what is in the cinema and TV, literature - all the characters are all pederasts, lesbians and Africans. Bely are cave-type antiheroes or Russians in a treuhe with vodka and a bear. Creative rolls over. Read the report on the current Berlinale, laugh. "The audience got up and left in protest against the outright content ..." !!! These are the Germans, the Germans were leaving, Karl!

[Chaos]

And why wouldn’t they build a tower to space)) They lifted a satellite with winches, a kick under the antenna and flew by, plowing the expanses of space)))

[SHURUM -BURUM]

Yes, two years ago, here, in all seriousness, the idea of ​​a space elevator was discussed, after all, a trampoline is better))

[Alex-a832]

Given the mass that they are going to “toss up” with a centrifuge, these are frantic overloads. It would be interesting to get acquainted with the idea. More like the announcement of another fantastic bakopilka. Saw, Shura, saw .... This idea is definitely golden ...

[Sverdlov]

I read a fantastic story in TM for a long time. One wise guy decided to overcome the speed of light in a centrifuge in order to test the theory of time dilation with it. Built, climbed, asked a friend to turn off a year later. He said he would be back in an hour.
A friend came in a year. Turned off, opened.
- well, all the same, he was a genius. The jelly was no more than an hour ...

[pvv113]

launch of satellites into space by ejection

I immediately remembered the trampoline

[Gardamir]

The American company operates in secrecy, access to its official website is password protected

Who are the agents that learned about the catapult? Or today is April 1? I guessed that the elections were coming soon.

[Govorun]

In the US, developing a way to launch satellites into space by catapult
Well, Rogozin, well done, of course, well-known patrol of the USA, and they understood this as a call to action .... but I have another question, but what will happen if the system makes a mistake with such wild rotations for at least a split second? Rocket instead of space will go into dense layers of SOIL ???

[Proton]

From railgun slingshot you can also run

[aleks.29ru]

WHAT IS Rogozin?

[Alexey N]

This makes no sense. Even at the school physics course.
Lap speed in 4800 km / h is awesome overload. Where are the materials, where is the technical solution for decoupling the retention mechanism? And also balancing. They all there without exception moved out of the back and lied.
..

[Vadim237]

The equipment and electronics of guided projectiles withstands an overload of 40000 g.

[HMR333]

someone recently wrote in articles about their new carriers here and the carriers))) in Ukraine let them buy a catapult for 1 la! Well, what sizes should there be a catapult so that the satellite would be thrown into space))) duck also, what would it be for the galaxy did not fly away but remained in orbit!)))

[Sverdlov]

Quote: ul_vitalii

Quote: Vladimir16

The publication notes that the designed device, which catapults the payload into space, will allow it to develop speed of about 4,8 thousand kilometers per hour.

The first cosmic speed will be a little more. Or did the Americans put a bolt on the laws of physics and if they need it, then they can also walk into space?

We calculated that this speed would be enough to overcome the Earth's gravity, and then the brick would receive cosmic speed.

In order to overcome the Earth’s drag, the first cosmic one is needed. Otherwise, the brick will fall back.

[Vadim237]

It is more like a stepped system, rocket acceleration, up to 4800 kilometers per hour - with an electromagnetic catapult, and then when climbing, the inclusion of a rocket engine is the first space rocket with less fuel.

[filatik]

Password: “fifteen-fifteen”

[Kerensky]

SpinLaunch plans to use centrifugespinning at speeds up to 3000 miles per hour. Also catapult able to provide additional power,

So what will it be? Will the catapult launch a centrifuge, or will the catapult be mounted on a centrifuge?

[Dormidont]

You can abandon missiles, which were not and are not, and climb the moon on a rope ladder

[PValery53]

The Americans still had the opportunity to go into space using an elevator or stairs ...

[Sergey Averchenkov]

Let me guess without reading the comments - here everyone is talking about a trampoline. :)

[UA3QHP]

The acceleration and parameters of a circular catapult are easy to calculate.
Linear acceleration is equal to the ratio of the square of the linear velocity to the radius of the circle.
If it is limited to an acceleration of 10g, this is approximately 100 ms ^ 2, then to obtain the first space velocity of about 8 km / s, a centrifuge with a radius of 640 km is needed, but if you allow an overload of 1000 g, then a radius of 640 m is enough.
But what will happen to an object flying at such a speed in the dense layers of the atmosphere?

[Baloo]

Quote: Kerensky

So what will it be? Will the catapult launch a centrifuge, or will the catapult be mounted on a centrifuge?

Maybe the translation is inaccurate?

[mavrus]

Maybe there’s someone on the site with an "American education", explain to us dark Russians how classical physics is consistent with American ... How much will it be in radians per second (or in any other units of measurement of angular velocities) "3000 miles hour"? Do they have a corner mile?

[Svarog51]

Andrey, welcome

explain to us the dark Russians how classical physics is consistent with the American ...

[Xscorpion]

Quote: Vladimir16

The publication notes that the designed device, which catapults the payload into space, will allow it to develop speed of about 4,8 thousand kilometers per hour.

The first cosmic speed will be a little more. Or did the Americans put a bolt on the laws of physics and if they need it, then they can also walk into space?

All the same, they read the books “From the Cannon to the Moon” and “The Adventures of Baron Munchausen.” The first space one is 1,3 km / s in American. The Newton laws have improved, well done. 6 times! You look at the speed of light and they now only 50000 km / s. Soon they will fly to the Centaurus.

[Vadim237]

Almost half the speed of light can be achieved at the moment, only on such a ship
Orion project with a pulsed explosive, nuclear engine - 1969 project. this requires 20000 nuclear charges from 2 to 35 kilotons.

[Xscorpion]

What are you reading inattentively:

[Quote]
The publication notes that the designed device, which catapults the payload into space, will allow it to develop a speed of about 4,8 thousand kilometers per hour.
The design also allows the launch in a centrifuge of a rocket, which, having reached a certain height, carries out the extra spacecraft to the required height. [/ Quote]

And in general, I would not gossip over something that was not fully understood, as the Papuans at the sight of strangely dressed white people.

No stupider people are working with us, especially a private company

How many times have we been in the role of catching up [/ quote]











These strangely dressed white people still admit that if suddenly the rocket does not fly from the catapult, will you have to put the engines in? Or the fact that after they "put into orbit" a rocket at a speed of 4,8 thousand km / h, can they adjust its orbit at the desired height using possibly installed engines? In my opinion, the second one, and that is, it’s already going as an additional option, because it is also possible, but not necessary. At the request of the customer. These white people are not dumber, of course, they can even be very smart in their own way, but they believe that others are not very smart and they want to earn money on possible investments. And then they will say that something doesn’t reach, we need more money. So we don’t need to catch up with such money.

[Xscorpion]

The creation of an alternative launch system SpinLaunch requires 30 million dollars, by now the company has 10 millions. The American company operates in secrecy, access to its official website is password protected.


That's really what this super centrifuge catapult was invented for, in order to earn 20 Lyamov bucks.

[faterdom]

Late. I already saw in Kiev on the Independence Square they showed a catapult, back in 2014 ... Yanukovych was still listed as the chief.
But in general - well done - they went into import substitution. As Medvedev ordered. In order not to buy the R-180.

[Fkjydjckfrgh]

Does anyone know American? What does it mean “spinning at speeds of up to 3000 miles per hour.”? For us, for Russians, rotation is measured rpm (min) or period.

[g1washntwn]

On a centrifuge radius? For example, we take the largest Ferris wheel in Singapore (height 165 m, take a slightly smaller radius - 160 m), a speed of 3000 mph (1340,8 m / s) then at the lower point on the radius at a given wheel speed there will be overload : 1 + ((1340,8 ^ 2) / (10 * 160)) = 1025g per payload without considering the mass of the entire wheel structure. (On the radius of the wheel of a car moving at a speed of 100 km / h, just a little more than 200 G Please correct if I pressed the wrong number on the calculator).
Judging by all the calculations of the "British scientists" and taking into account the speed of the Earth's rotation around the Sun (about 30 km / s) ... to go out into space it is enough just to jump on the spot, which is proved by the "cosmonautics of Ukraine" :)

[karelia molot]

Did Rogozin's words about the trampoline be taken literally?

[Old26]

Quote: Vladimir16

The publication notes that the designed device, which catapults the payload into space, will allow it to develop speed of about 4,8 thousand kilometers per hour.

The first cosmic speed will be a little more. Or did the Americans put a bolt on the laws of physics and if they need it, then they can also walk into space?

No, these are moderators or who "checks" the articles there. Even 4,8 km per second is not enough. It is possible to deduce the load into space at such a speed, but only in order to know where it will fall. No more

Quote: Hagalaz

I completely agree

Quote: bulvas

And in general, I would not gossip over something that was not fully understood ...

The ejection method for launching spacecraft has been described by many science fiction writers, far from being stupid. It is also well known that many of those fantasies have already become a reality. At the same time, it is foolish to expect that this method will suddenly take off in a ready-made form. Work started through mistakes and possibly failures, when they may well become commonplace.

Americans in the 50s and 6s were already experimenting with something similar. Namely, with the payload being launched into space using a specially designed gun, the EMNIP caliber is approximately 180 mm. satellites for the most part could withstand launch loads. Of course, not everything can be allowed in this way, but some can.

[Axon]

Jules, Vern.

[vvlagun]

... Magnetic slingshot probably ... Risky guys .. With a tornado on their other side of our Earth, my mother will not agree .... Some kind of kindergarten ..

[duchy]

Damn, if he sees this device for starting, it will certainly be more interesting than thinking and watching how the hedgehogs mate.

[tivivlat]

0,5 km / s, not bad at all!