watch it here.
http://www.youtube.com/watch?v=_jacspipp
2007-04-22 01:08:42 · 4 answers · asked by ⇐DâV£ MaΧiMiÅnO⇒ 6 in Science & Mathematics ➔ Engineering
sorry.....
This is the exact link
http://www.youtube.com/watch?v=_jACSPipPSE
2007-04-22 01:26:55 · update #1
There are two possible answers I can see.
The most likely one (based on what I have seen with those openers) is that when the battery in the remote is starting to need replacement the radio transmitter's range is not as far. It is just like a flashlight getting dim after having it on for a while. In that case then pushing it a few times will exhaust it somewhat. If you then wait a minute as you are telling someone about putting it on your head (or under your armpit or wherever) then the battery has time to rest and its voltage goes up enough that you have a longer range.
The other idea is for suspicious people. I noticed that the guy does some repositioning of his body when he does the second set of demonstrations. You lose the view of the car so it is not obvious it is the same car (maybe one with a better antenna in it is in the second demo). There are magicians like David Copperfield who use that trick to cause miraculous differences.
2007-04-22 05:35:17 · answer #1 · answered by Rich Z 7 · 0⤊ 0⤋
One possible reason might be the positioning of the hand held remote. The printed circuit card inside it also has an antenna. If the antenna is a loop etched into the card it is somewhat directional and is more sensitive at a right angle to the plane of the loop.
The orientation of an antenna with respect to the receiver will have an impact on range. Especially if there is a directional vs omni directional antenna being used.
When the remote in in your out stretched hand the circuit card is oriented parallel to the ground with the bottom of the circuit card facing the ground. But I notice that when he placed it to his head it is naturally positioned so that the bottom of the circuit card is facing the car. This would position a loop antenna strongest directional signal towards the car.
A simple way to test this is to see if the same effect can be done by keeping the remote in an outstretched hand and changing the orientation of the remote.
2007-04-22 07:42:58 · answer #2 · answered by MarkG 7 · 0⤊ 0⤋
Well, at a press of a button all your doors of the car are sealed, so if any one tries to force open any of the door, the car siren goes off, so make sure wen ur sitting inside the car or dont leave ur mobile inside the car and on the system coz it may go off and be very annoying. But its safety for your car better get one for your car.
2007-04-22 01:19:58 · answer #3 · answered by vic_van_helsing 2 · 0⤊ 2⤋
It would be easier to answer your question if your link went directly to the clip.
2007-04-22 01:15:32 · answer #4 · answered by John S 6 · 0⤊ 1⤋