Ideas on how we can drastically improve space crafts, and what alien crafts might be like?

Question

I've put together quite a few things, goal in perspective was to find out what type of crafts aliens have used to reach Earth, and to match up characteristics from legitimate sources and videos. What I resulted in was a bit more than I expected. Look over this and tell me what you think (Anybody who thinks we are the only life in the universe, don't bother answering).

You have a craft, inside is whatever you may want, and at the center of balance is a spheric shield of electromagnetic fields, holding dense amount of negative matter.
-reasons for this? Negative matter has negative inertia, and if you have 99% of the crafts mass equalled with negative matter, then you are left with a counter balance of a total inertia of only 1% of the initial mass.
This will allow the craft to act like it only weighs 20 pounds or so, therefore allowing you to blast away from earth at phenomenal speeds, given the low inertia. You have the negative matter held away from the positive matter because they will react if they touch, and electromagnetic fields can touch both and not react.

Propulsion is a form of silent, plasmic jets. They put off no sounds, and are very precise to give pinpoint motions, they can be aimed at different angles too.

The craft is SURROUNDED by a layer of metamaterials, which if you don't know, refract light around them, resulting in INVISIBILITY OF THE CRAFT. For cameras to see out of the craft , they have lenses that act as one way glasses that can see through the material.

What does this seem like to any of you master philosophers out there? Any new ideas are appreciated!
Thanks for reading

Michael · Accepted Answer

Hello Clay,

1. There are lots and lots of nice little ideas on how to build spacecrafts on the web - but the real problems are the laws of physics, to which there are no solutions, 'cause we can't break, change or circumvent them ... bummer.

2. What do you mean by "legitimate sources" ? There's no such thing as a legitimate source for these kinds of subjects, 'cause ANY reasonable professor of astronomy or scientist would avoid talking about such matters at all cost (out of fear of losing their reputations, which is their only basis to earn money).

3. How do you intend to produce anti-matter ? It takes thousands of years and tremendous amounts of energy to produce an even notable quantity of anti-matter ... ;)

4. How do you deal with the micro-meteorites ? Space is loaded with them. If a micro-meteorite the size of a grain of sand hits your craft at velocities near the speed of light, your spacecraft gets trashed - no matter the material or shielding, because, according to relativity, the grain of sand hits with the force of almost infinite mass. It's physically impossible to protect your craft from that.

5. What about the Doppler-Effect ? When moving at velocities near the speed of light, the wavelength of the usually harmless starlight gets compressed, which results in an effect that's comparable to the effect of gamma-rays on the human body. In other words : You'd get fried alive by intense radiation in no-time.

6. Do you intend to see your relatives again ? When travelling at 99.999% the speed of light, for every single day on your craft an entire year passes on earth. When you return from e.g. a short research trip of 6 months, every person you've ever known on earth is DEAD, because 180 years have passed here ... ;)

Anyway : If you have the ability to solve the above mentioned problems (which is pretty doubtful to say the least 'cause -nobody- in this universe can break, change or circumvent physical laws), I think it's time to think about proper materials / designs for such a spacecraft again ... ;)

Greetz,
Michael.

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Ideas on how we can drastically improve space crafts, and what alien crafts might be like?

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