Is "abandoned cemetery" convoluted?

Protect retinas, sleep better; blue-light canceler download

"[Too much time looking at the computer screen is] not good for our eyes. LED screens emit a great deal of blue light, and according to the Vision Council, "cumulative and constant exposure to blue light can damage retinal cells."

What's more, even the non-harmful portion of blue light sends a signal to our brains that it is daytime, revving up our heart rate and alertness. It mimics the sun, basically. You do not want to be lying in bed at night, having brushed your teeth and set your alarm, staring into the sun. It's not a recipe for good sleep.

...Exposure to blue light at night has even been linked to cancer, diabetes, heart disease, and obesity. (It is not entirely clear why; it likely has to do with suppressing the secretion of melatonin.)

There are all sorts of solutions to the blue-light problem. The most obvious is just not to look at screens for two or three hours before you go to bed. Unfortunately, a substantial proportion of my professional work gets done in the two to three hours before I go to bed, so that's not really an option for me.

Hardware solutions include adhesive screen protectors that filter blue light and even orange goggles, if you want to look extra cool after the sun goes down.

But by far the easiest step is just to install f.lux. It's free for Windows, Mac, and iPhones/iPads**. (There's not yet a version for Android, but there are plenty of alternatives; I use one called CF.lumen.)"

http://www.vox.com/2015/11/2/9658952/blue-light-app

The eyes have it

Prohodna - Eyes of God

Up close Sun spot

magnifying lens

Well, since you cannot comment down there comment here. Tell me how wrong I am. Because at the doctor's office I was sitting there in a little room waiting for ten minutes and a couple things happened in there while waiting.

1) I was holding reading glasses in my hand and notice the lenses magnified the carpet magnificently. At arms length I could read the carpet like a carpet examiner. Every fiber showed up brilliantly, every weave and irregularity every fragment and I was amazed.

It seems a simple thing but there it is, the carpet on display on the surface of the lens bigger than the actual carpet. How does the glass make it actually bigger on the surface of the lens than it is in real life? How? What kind of magic is this?

I think I figured it out. The lens bends the light waves within the glass, for light is waves in this model here not photons, or perhaps the light is continuous streams of photons, lines. Within the lens the lines are bent outward toward the edges of the lens. Everything is bent outward so everything appears larger on the surface. The eyeball isn't doing anything unusual with the glass, the glass is not tricking the eye.

The lines go through the lens but bend within the lens and lines are distorted, exaggerated in the center from the bottom of the lens to the top of the lens and lost from the bottom edges out the sides and nothing unusual happens with the eyeball, it sees things normally including the surface of the lens.

So there's that. 

Ten minutes is a long time in a room by myself, he's lucky I didn't start playing with the equipment he leaves there, tuning forks and such, there are some interesting things to get into. I closed my eyes and looked up at the light and that backlit all the junk in my eyes alarmingly. My tears are filthy. I couldn't believe all the grit in there, and wondered, how am I going to cry all that out. It worried me. I tilted my head and all the grit in there sloshed to the side, then tilted the opposite way and all the junk in my tears sloshed to the opposite side. I tilted my head back and forth like a windshield wiper, the junk sloshing inside tears like a washing machine. That's right when the doctor walked in.

"What's wrong with you?"

Man, this is a dirty town. Disturbing, isn't it? I bet you have grit in your eyes too.