[quote]Professor X wrote:
skaklight wrote:
Professor X wrote:
Question, does anyone wonder whether the technology in the movie with the cell phones is possible in any way? With every phone in the country containing a built in camera, is it possible that someone could use this for information retrieval without any of us knowing the difference?
This part of the movie was annoying to me. Cell phones operate by sending and receiving signals, just like sonar. The difference is they operate in different frequency ranges. Cell phones operate in the upper 100 MHZ to GHZ range, while sonar is low MHZ and below. One would need to install new hardware into every cell phone to pull that off, and maybe that’s what they intended us to think, but I didn’t feel there was time for the majority of the population to cycle through a phone (1-2 yrs?). It seemed like he wanted us to think he reprogrammed the phones or something, IDK. I chalked it up to ‘its just a movie’ and tried to ignore it.
So don’t worry this probably won’t be happening any time soon, but Nolan just gave the bastards the idea.
Great movie though.
You seem like you know something about this, so don’t you think the upper ranges could be filtered without added hardware?[/quote]
A cell phone signal will not reflect (much), so there would have to be hardware on every phone, not just new hardware at one location (like in the movie) If your question is plausibility: yes; possibility: low. There would need to be some very deep pockets , almost government like pockets(uh-oh!), funding the operation to cram some tiny hardware into a device that everyone wants as small as possible.
