Let’s inference what one learned about doing research and interpreting news during years of studying. Some remarks on science, pseudoscience and how to not fool yourself from Richard P. Feynman in an annual graduation lecture for Caltech students in 1974.
In the middle of the day, suddenly the keyboard of my laptop together with all the surrounding buttons (volume etc.) stopped working! After the reboot, as the ESC button (it enters BIOS) was not responding while starting the computer, it seemed like a hardware problem. Damn, I have work to do! – I thought.
Hp TouchSmart tx2 1050ew
Luckily, my notebook is a tablet, so I could use touchscreen keyboard. I was about to look for the instruction how to remove the keyboard from the notebook. Imagine what was my relief when I found the solution: HP Touchsmart TX2 keyboard failure (and the cure) at Laurent Bugnion blog. He had exactly the same problem and got help from HP support. The cure is simple:
Unplug the power and remove the battery.
Hold the power sliding button for about 3 min (yeah, this is painful).
Still holding the power button, plug the power cable.
Release the power button and turn on the computer
As I’ve read elsewhere, the notebook has hardware shipping keyboard lock. It seems it has been somehow reactivated during my work. It is just enough to discharge all capacitors and that’s it – the lock removed, keyboard working like a charm.
Do you like solving riddles as a way to entertaing and keep the brain fit?
I do! I must confess, I quite like the feeling when you succeed in the riddle. It means you are flexible enough to think like the author of the riddle, you’re able to look from different perspectives. It is even better if you find an alternative solution, oh yeah…
Try to close your eyes and walk around the room, not to say about using the computer. Almost impossible, yeah?
Human eye (source: Wikipedia)
Sensitive to wavelengths within the range of 380 (violet) to 780 nm (red), reacts to just a few fotons, this makes a human eye a great detector. Adding to this adaptation (ability to adjust the quantity of light falling on retina by changing the dimension of iris), accommodation (ability to adjust focus by changing the shape of lens) and 3D viewing (thanks to two eyes) – this is really complicated!
Have you ever thought about how does the eye evolved? There is a short story!