Before I begin to answer Billy's points, I want everyone to pay attention to some scientific facts.
Fact: Airplanes can't fly.
Fact: Insects can't flap fast enough to keep themselves in the air.
But fact: we've all seen insects fly, and fact: we have all either been on a plane or know someone who has.
When we look at Billy's speech, Billy gives us a new fact: man did not land on the moon. When looking at his "facts," we see facts not rooted so deeply in science as they are rooted in his personal assumptions; however, when we analyze the bits and pieces of his theory, one thing becomes clear: Mankind can fly through space and Mankind did land on the moon.
Lets look at the first issue Billy brought up: radiowaves. Even though Billy essentially concedes his reasoning is flawed, we see Billy made several dangerous personal assumptions that were not rooted in science but his personal conjectures. He assumed that NASA only had AM broadcasters for communication. He assumed satellites use different waves than radio. And he assumed radio waves are sound. But all of these are wrong. NASA used sattelites, which were created twelve years before the Apollo 11 landed. NASA used radio waves; satellite waves don't exist. And radio waves are radiant energy (light), not sound. And as a final note, Billy even got the date for the moonlanding wrong: 1969, not 1967.
This tells you two things: one, Billy's theories are not always fully rooted in hard science, and two, it is perfectly possible NASA communicated with its manned crew on the moon.
Now his second point is the more important point, can space travel exist? "No," Billy claims to us. His argument is that only a vacuum exists in space and, therefore, propulsion is impossible. Therefore, a spaceship could not move forward in space, but once again, we see several flawed assumptions that are underlying in his beliefs.
Firstly, the concept of a vacuum. Billy believes that a vacuum is empty, nothing exists in it, but this view of vacuum is once again rooted not so much in science as it is on his personal guesses. The notion that vacuum is empty has been thoroughly disproven for over half a century, and Einstein himself even scoffed at that notion when he wrote his special theory of relativity in 1905. A vacuum, contrary to popular belief, is a vibrant and active segment of space. It is not empty but rather filled with tons of particles, ranging from the smallest electrons and quartzes to the largest molecular constructs. Quantum physics theories have shown for years that matter is constantly created and destroyed in the blink of an eye inside a vacuum. A true "empty vacuum" does not exist and cannot exist; even in that concept of pure empty space, there must be the fabric of space for it to be there. So we see that there is matter inside a vacuum, matter that can give the resistance needed for propulsion to occur.
But going on, Billy once again makes several dangerous assumptions, he just assumes that no flames can occur because there is no air in space. Clearly, the concept of an oxygen tank is new to Billy. The most cursory analysis of any schematic of NASA's spacecraft shows that there are numerous chemicals, including oxygen, used to manufacture thrust.
But also, consider the implications of Billy's point that propulsion in a vacuum is impossible: nearly all satellites fly outside earth's atmosphere, they exist inside a vacuum but are still affected by earth's gravity. If they were unable to move themselves inside a vacuum, as Billy claims, the earth's gravity would pull these sattelites into our atmosphere, destroying them in the process. But!...... sattelites, inside this "vacuum," are able to thrust themselves to ensure that earth's gravity doesn't pull it into its atmosphere. The plane can fly, ladies and gentlemen.
In the end, its clear, Billy has given you some cute points, but they are INCREDIBLY lacking in any scientific support. Here's what it boils down too, Billy has been unable to prove to us that space travel is impossible and so there it is clear that man could travel through space. Want proof we got there? Watch [url=http://www.nasa.gov/externalflash/apollo11/index.html]the videos[/url].