Why are they silent when they fly across the sky ? also when they fly at tremndous speeds why is there never the sonic boom when they break the sound barrier ? any ideas ?

Extraterrestrial's are usually thought to have more developed technology than us. That alone can explain the speed and maneuver's of their aircraft, so it can, in my opinion, also account for their lack of noise.

If the 'mutliverse' theory holds true then it is possible that any number and size of 'universes' could exist...and each with its own determined set of physical laws...meaning that the speed of light may not be constant across all possible universes and existences..any number of physical laws could be different or distorted by comparison. What if ufos simply 'pop' into and out of our plane of existence...possibly even unaware of us in some cases...as their mode of stellar travel? We may see them because time is slowed down for us..but for them...time may be distorted or non-existent while en route...what they see may be nothing but a fast moving blur...who knows...

Look at an electric car, they are virtually silent as well. If it weren't for the sound of the rubber hitting the road the things would be completely silent too.

The noises we expect from engines are the result of combustive processed (things exploding). In engines, like electric engines, where there is no combustion, there is no sound.

Question 2:

Sonic booms can be eliminated in a number of ways. For instance, the shape of a craft has much to do with the strength of sonic booms. It is postulated that some shapes will eliminate sonic booms all together (like a pure disc shape). That's just one idea. 22's explanation works too. I just think the problem might not need multidimentional physics to solve (smirk).

Then again....it might...and that might just be a crucial piece of the puzzle that we're missing...in our own efforts to go inter-stellar. (bigger smirk lol)

I used to think they would be peaceful because in an advanced civilization, they wouldn't need war because they don't lack resources.

But they do lack them, and I sometimes think they're trying to change our climate or world to make it poisoness for us and habitable for them.

I no longer trust them. I used to think like this years ago but then was convinced by some yahoo they wouldn't hurt us but want to watch over us.

They want our planet. Will they the over populated planet off with a virus, with altering our dna structure or drop a bunch of large reptilians on us. Something like in the film Cloverfield. Yeah, laugh at me but why couldn't it happen. Imagine waking up at 4am hearing something screaming and causing an earthquake everytime it stepped down. The reason for such a tactical move like that on us would be to attack us suddenly, cause fear and panic and have us all running like cattle at a slaughter event.

Seriouslly.. why couldn't they unleash millions of Godzilla size creatures on our asses and then release a virus on us. Just torture our souls because they're evil fu**ers. If you don't believe me, then why do they probe people. I bet it's for their amusement. If they're so effen advance why do they have to do something so primative as to jam needles up into us.

Just a thought.

This post has been edited by trog: Mar 19 2008, 01:07 PM

Good point Trogg, I suspect though that, like an ant does not know why we do what we do, that alien motivations may end up being something so far away from anything we have previously thought of that it would not be funny. But I have always wondered at the wisdom of shouting out to the Universe, hey we are over here. It seems a little like splashing around in a NT river, there may be harmless fish there, but there are always a few crocs as well.

The visitors operate silently for the same reason that prevents the sonic boom.
Most ships operate with no moving parts and since they are encased whithin their own generated gravity field this allows them to move silently well past the speed of sound and to change direction at any speed.
I believe many operate a protective force or energy field which hinders good photos many times. It also causes them to look undefined sometimes and creates the glow at night sometimes.
The visitors mean us no harm, if so then why the hell wait until there is now over 6 billion with a rapidly developing technology, when they could have snuffed us way back when we were cave dwellers and numbered perhaps a million or 2?
Those are my thoughts.

they mean us no harm.RUBBISH!ask that to an abductee or a mutilated cow.they need our resources and we are mining and gathering for them.

Oscar,
My man. Open your eyes and watch this vidoe on Google by Stan Deyo. It explains everything for you.

http://video.google.com/videoplay?docid=-8...h&plindex=5

They are silent because they. (the US military and aliens) have mastered antigravity technology. There is no "sonic Boom" because you have to break the sound barrier. How can you break the sound barrier if there is no sound?
Antigravity also deals in time.. Lets say you are the pilot of that craft. When you turn the steering wheel, and that thing moves ( since you are the pilot) it feels like your turning very slow. but in reality the outside world of the craft has slowed. Thats how you see those things zip around. and not be turned into jelly. Do some research. Start with Anti-gravity. move from there. hell you'll find that even the periodic table is much larger than "WE" ever learned in school.

Email me if you want. sean4x427@yahoo.com

You could have easily answered that question by finding out how a sonic boom is produced. Although as entertaining as some of the ideas presented may be, the answer may be simple as answering this question: "If a tree falls in the forest and no one is there to hear it, does it make a sound?"

When an object flies through the air, it creates a series of pressure waves in front of it and behind it, similar to the bow and stern waves created by a boat. These waves travel at the speed of sound, and as the speed of the aircraft increases the waves are forced together, or compressed, because they cannot "get out of the way" of each other, eventually merging into a single shock wave at the speed of sound. This critical speed is known as Mach 1 and is approximately 1,225 kilometers per hour (761 mph) at sea level. The power, or volume, of the shock wave is dependent on the quantity of air that is being accelerated, and thus the size and weight of the aircraft. As the aircraft increases speed the shocks grow "tighter" around the craft and do not become much "louder". At very high speeds and altitudes the cone does not intersect the ground and no boom is heard.

No air, no sonic boom; like in a vacuum or outer space.

Oskar posts: also when they fly at tremndous speeds why is there never the sonic boom when they break the sound barrier? any ideas ?
====================
No ideas of my own Oskar buuuut…lol

Maybe ‘Alien’ spacecraft have learned to abate the sonic boom phenom.
Humans are working on this now…
There are theoretical airframe designs that do not appear to create sonic booms at all, such as the Busemann's Biplane.

“Busemann's Biplane is a conceptual airframe design invented by Adolf Busemann which inherently prohibits the formation of N-type shock waves and thus does not create a sonic boom.”.

“Although it has been shown to work in wind tunnel testing, and it has been successfully tested for ammunition, nobody has as yet been able to suggest a practical implementation of the concept for aircraft, as it generates no lift.”
http://en.wikipedia.org/wiki/Busemann%27s_Biplane

‘Flying saucer’ airframe designs do not appear to Humans to be able to generate lift either.
Maybe Alien spacecraft have been designed to nullify the sonic boom phenom? ~rore

This post has been edited by rorechof: Mar 25 2008, 11:24 AM