or 3.7 l/100km

Why do you think it's a security theater? I'm sure some implementation of email obfuscation are weak and there are already bots that can harvest for example someone at example dot com or similar, but stronger techniques should be able to fool the bots.

I remember having a lot of fun playing Frontier on my Amiga. It's the only game I've played that has a realistic space flying physics. For example, if you come out of the hyperspace at some 1000km/s , the fastest way to slow down is to turn around and fire the main engines. I also loved manually landing on space stations. First you get to the star system, navigate to the planet, get to the space station (monitoring the relative speed to the station so you don't slam into it) then find the docking bay, sync your rotation to the stations and slowly float in.

You could have bought a USB->Parallel cable. My LaserJet 5P (which I found on the street in 1999) works perfectly fine with it under Linux. I haven't tested it under other operating systems.

...and by the way - it was Marconi that invented most of what was later attributed to Tesla... and returned to Marconi only recently by world courts.

Actually, it's the other way around. Check your facts.

I remember constantly having a right arrow image imprinted on my thumb and now being able to play because of the blisters. This is indeed old condition.

I've recently discovered automysqlbackup.sh. It took 4 minutes to set up and now it happily backs up all my databases to the local disk and emails them to me. It's brilliant!

Human eye is actually able to detect single photons but we're programmed not to notice them unless they are above a certain threshold.

Quote from: http://math.ucr.edu/home/baez/physics/Quantum/see_a_photon.html

The human eye is very sensitive but can we see a single photon? The answer is that the sensors in the retina can respond to a single photon. However, neural filters only allow a signal to pass to the brain to trigger a conscious response when at least about five to nine arrive within less than 100 ms. If we could consciously see single photons we would experience too much visual "noise" in very low light, so this filter is a necessary adaptation, not a weakness.