Reddit reviews And There Was Light: Autobiography of Jacques Lusseyran, Blind Hero of the French Resistance

Yo, if you are at all intrigued by this, you gotta check out And There Was Light by Jacques Lusseyran. It's the autobiography of a blind member of the French Resistance during WWII, and it is an amazing book.

Unfortunately, I think it's gone out of print recently. There are 37 copies left on [Amazon] (http://www.amazon.com/And-There-Was-Light-Autobiography/dp/B00AZ8KI22), though, and the good news is that they are hella cheap.

I found the book in the bookshelf, it's "And There Was Light" by the French Resistance hero Jacques Lusseyran.

I haven't read far enough yet to get indications of something "magical" or that he developed other skills to see like seeing by sound or such, but when reading about the book on the web, as it was referenced on many places, it seems to be a great book in many ways and I'm glad you reminded me about it.

Regarding more rigorous experiments I guess such equipment I intended to build to investigate the dowsing rods, could be useful also here, as it would be to match coordinates in space mainly I guess, for statistical analysis. Regarding the dowsing rods, I got a few old ball mice where I can use the sensor wheels for sensing the position of the rods, but that may or may not be relevant, well as an arm position sensor possibly.

Anyway, for the space coordinate measurements I've pondered long time over how to do it simply (that is not too costly) and a method I'm intending to test soon is to have highly synchronised timers, e.g. by using something like Raspberry Pi and these Arduino compatible HC-SR04 ultra sonic distance meters which have a precison of around 1cm. The timer synchronisation can be achieved through a wireless protocol. My intention is simply to separate sender and receiver. The sending side starts an ultrasonic pulse and a timer at a precise moment, which the receiving sides know (can be many for triangulation), and can thus measure 3D coordinates. However, when thinking about it Thanks 8-) it is possible to utilize the same principle reversely. One can have a fix transmitter, and then plenty of receivers which are moving, stuck to arms, legs and such and get a coordinate for each receiver. I have to test this. One can also imagine that Kinect could be useful for this, but I don't know if it has enough precision. (The Kinect doesn't require Microsoft sw, they released open source drivers so you can work with them on any system, which I guess is the reason why they have been so extremely successful, I'm a Linux user).

Edit: sorry, it must have been too early in the morning... In the latter example I claimed it would be enough with one fix sender, to estimate a lot of 3D coordinates. One need of course 3 fix senders to be able to do that, which imples that you have to lower the dynamic resolution to 1/3, by doing three separate measures in sequence. Ideally this could be performed with wideband utrasonic speakers and microphones, but then those simple and affordable HC-SR04 may not be suitable.