As he arrived on the deck he saw a cigar shaped object. He thought quickly, ran back into their home and grabbing his brand new camcorder he scanned the sky for the object and began filming. Eventually when he lost sight of the object he went back inside and played the tape over and over. To his surprise and everyone else's .. what he saw completely shocked him.
Speculations are being made that the above video is nothing more than a common mylar balloon. However, examination of such balloons will reveal that they are nothing alike, save for being circular in shape.
Click here to see video of a typical commercial 'ufo' style advertising balloon in motion. One can see there's very little in common with what Mark captured swooping through the skies on August 11. (you'll find the video on this page on the far right column, #9 down from top, labeled 'The Ultimate Advertising Tool')
Well, your examples and graphics and logic are all admirable, but I still have to challenge you on this, Peter! First, you've misunderstood one element of my graphic, which is the 'commercial' mylar balloon on the left (I gave a URL for an example of these, but I guess it was still a bit confusing)... they are rather large (anywhere from 4 feet to 12 feet in diameter) and have some kind of small fan/motor device as a gondola attached to the bottom, which is also part of the balast to keep it level. The "string" element would apply only to a mylar party balloon -- I wanted to clarify that.
I was not illustrating a "party" balloon. And therein lies the rub! The videotape we have received to date of such silver ships cannot be mylar 'party' balloons as they would need to be extremely large to appear as they do on the tapes; 20 feet or more. The typical party style mylar balloon is usually no larger than about 3 feet in diameter. I've seen dozens of detatched mylar party balloons floating in the sky, large and small. They don't resemble these videos in the slightest. The size difference is one aspect. Another is, an underinflated mylar party balloon -- much less a large commercial balloon -- is not going to have the kind of altitude these discs show on tape. These are clearly very large and too high up to be small party balloons, even when zoomed in. You are also at hand dismissing the eyewitness account. I see no reason to do that unless you know something we don't about this person and their claims. Also, I have yet to ever see a mylar party balloon maintain, even for a short distance, level, horizonal status. They always tip up on edge and usually stay that way, short of a few strong gusts that might make them tumble end over end. That's just plain ole' fashioned helium physics. Additionally, a mylar balloon so deflated would tend to bend and buckle on itself.
What we're seeing in these videos are silver discs that are remaining horizontal, that turn and pitch and right themselves again. Release a few underinflated mylar party balloons and see what you get. They drift off turned on edge, just as they are designed to do (usually because there is a message printed on them) and even if carried aloft to a reasonable altitude (which usually won't happen), they will stay that way, looking like... well... an escaped mylar party balloon.
This is a special weather balloon