rxmd
May contain traces of nut
Assuming that you wanted to put that "k" where you put it, there's no way I'm putting my head anywhere near it, let alone allow it on a plane.
Mechanical Cameras Only - turn PEDs off for take off and landing
- Thread starter FrozenInTime
- Start date
- Latest activity Latest activity:
- Replies 70
- Views 7K
Assuming that you wanted to put that "k" where you put it, there's no way I'm putting my head anywhere near it, let alone allow it on a plane.
Thardy
Veteran
Mythbusters did try do determine if RF from cell phone did anything to avionics. They were not allowed to test on commercials airlines (of course) but they did tests on a grounded airplane.
One person speculated that cell phone communication may be hampered in some way by a cell phone broadcasting over a super wide area (not locally to any one tower)
I don't think they could induce any untoward effects from cell phone signals, but they said in this case it would be better safe than sorry.
kshapero
South Florida Man
Regardless of airplane interference, cell phones on on planes because of roaming, increase RF by 500%.
Olsen
Well-known
Ha, ha, ha! I meant, 2w of cause. 2kw and it would be torture instrument.
Roger Hicks
Veteran
Yeah, but that's just for ORDINARY people's cellphones. I'm MUCH more important than 200+ lives...
I am quite prepared to believe that the risk is tiny. I am also quite prepared to believe that someone who can't live without their mobile/ cellphone/ portable/ handy during a flight is a brain-dead, arrogant a*sehole. Not always, but at least sometimes.
HOW IMPORTANT IS YOUR PHONE CALL?
Cheers,
R.
Last edited:
Thardy
Veteran
I am surprised that people, as selfish as they can be, readily comply with this rule, unless they surreptitiously use the phone in the lavatory.
sandymc
Member
Olsen
Well-known
Thanks, for the interesting link. I am just in the middle of the process of converting and storing my PCD files on a HD. This is very useful infromation!
sandymc
Member
There will be a new version (1.0.3) out in a few days, but the improvements are only relevant to 64Base images (as found on the "Pro" CDs)- the way pcdtojpeg finds the auxiliary IPE files has been improved.
Sandy
Sandy
brett
Newbie
No planes have crashed is not proof.
No planes have crashed is not proof.
They don't ask people to turn off their cell phones for the ones that are working correctly, as yours apparently is, so far.
They ask everybody to turn them off for the phone that is damaged and is sending out all kinds of spurious RF that might actually interfere with the fly-by-wire or the plane's antennas. The owner might never suspect a thing .
So unless you're in the habit of testing your phone before every flight, maybe you could do me (I fly routinely) and the other 120 people aboard a favor and turn it off. Just in case.
And carrying an extra set of headphones just to trick the flight-crew? That's a lot of effort to avoid the boring but potentially life-saving 60 second reminder to look for the nearest exit... Worth reconsidering that gag.
No planes have crashed is not proof.
They don't ask people to turn off their cell phones for the ones that are working correctly, as yours apparently is, so far.
They ask everybody to turn them off for the phone that is damaged and is sending out all kinds of spurious RF that might actually interfere with the fly-by-wire or the plane's antennas. The owner might never suspect a thing .
So unless you're in the habit of testing your phone before every flight, maybe you could do me (I fly routinely) and the other 120 people aboard a favor and turn it off. Just in case.
And carrying an extra set of headphones just to trick the flight-crew? That's a lot of effort to avoid the boring but potentially life-saving 60 second reminder to look for the nearest exit... Worth reconsidering that gag.
limousine
Newbie
I am not quite sure I understand your question. But I will guess, and you will see if I am right.
I am guessing that you are talking about the older pre-digitial cameras, where you wind them by hand. But in a way, it does not matter, since there is something that is the same with all cameras.
The trick is that there is a spring inside, and when you wind the film forwards, ready to take the next picture, you are also tightening this spring, bending this spring. In newer cameras, this is usually done with an electric motor powered by batteries, but then too, a spiral of spring is turned and tightened.
So there is then a sping that is ready to spring back. When something is 'ready to move' - when it has the energy to move but something is stopping it - that is called "potential energy". Then when you push the button to take the picture, you release the spring and the spring moves and drives the little machine that opens the apparature - the hole that lets the light come in to the film or sensors - and sets the timing and then closes the apparature.
So when you or the electric motor wind the camera and advance the film, you are also winding this spring - giving it potential energy. Then when you take the picture, this potential energy is released and used, as 'kinetic energy' to move the parts of the camera that do the delicate work of taking the picture.
I am guessing that you are talking about the older pre-digitial cameras, where you wind them by hand. But in a way, it does not matter, since there is something that is the same with all cameras.
The trick is that there is a spring inside, and when you wind the film forwards, ready to take the next picture, you are also tightening this spring, bending this spring. In newer cameras, this is usually done with an electric motor powered by batteries, but then too, a spiral of spring is turned and tightened.
So there is then a sping that is ready to spring back. When something is 'ready to move' - when it has the energy to move but something is stopping it - that is called "potential energy". Then when you push the button to take the picture, you release the spring and the spring moves and drives the little machine that opens the apparature - the hole that lets the light come in to the film or sensors - and sets the timing and then closes the apparature.
So when you or the electric motor wind the camera and advance the film, you are also winding this spring - giving it potential energy. Then when you take the picture, this potential energy is released and used, as 'kinetic energy' to move the parts of the camera that do the delicate work of taking the picture.
Similar threads
- Article
