I need new glasses and sunglasses. Are transition lenses better than they used to be? [more inside]
Help interpreting glasses prescription. [more inside]
How do you read with progressive anti fatigue lenses? Please show me how. [more inside]
Will bifocals help my scenario? [more inside]
The new eyeglasses saga somewhat continues. Thought the third time would be the charm... seems like that doesn't ring true for this situation. [more inside]
This is a follow-up to a question I asked two weeks ago. There's still no resolution - replacement eyeglasses are just as bad. [more inside]
Maybe I'm just imagining this, but I seem to remember seeing an example of the word "Push" that when viewed upside down read as the word "Pull". My fever dream or a reality?
Holding a mug close to my face, there is an interesting effect. It's not like other things and I can't duplicate it with other objects. [more inside]
My dad's fed up with his Verizon cable + internet package. It's expensive, and they won't let him suspend it when he's not there for months at a time. He'd like to get his services from a less user-hostile service provider. Ah, but what kind? Cable? Satellite? Something over phone lines? [more inside]
This thread and this hypnotic diagram reminded me of a science fiction short story premised around the idea that breakthroughs in psychology and applied mathematics had made it possible to design two-dimensional black and white images that would produce extreme effects in anyone who looked at them. The result was a society in perpetual counter-terrorism lockdown. An image like "The Parrot" could cause immediate seizures and fatal strokes, and one terrorist sneaking a placard of it into the Superbowl could not only kill everyone in his immediate area but also viewers at home. Our main characters in the story are tweens who attend a school with translucent windows. They've gotten their hands on a low-powered nausea-inducing image and they've formed a secret club to take turns looking at it. Where can I find this story? [more inside]
I walked away from my last visit to the optometrist with a prescription for bifocals. All for the low low price of $20. The bruises on my ego were free. [more inside]
I'd like to reuse a 5.25" optical drive in an external USB 2 enclosure. Are there any that are USB- or bus-powered? The ones on Newegg are all AC-powered, it seems. Do bus-powered enclosures exist?
When riding in the passenger seat in a car on the freeway, do the trees sometime look like they're rotating backwards? [more inside]
Where can I find compact mirrors (about 2" square) in the DC area? [more inside]
I ordered new glasses online. I've been wearing them for 4 days and they still seem "off" a little. How long did it take you to get used to new glasses? Is something wrong with these? [more inside]
I have a half-height 5.25 bay on a Dell Optiplex XE, currently occupied by a DVD/CD burner. It needs to be replaced with a removable hard drive, but I still need an optical drive. [more inside]
My Microsoft Setpoint (wireless optical) mouse isn't selecting properly anymore, especially text, but seems to work properly in every other way. [more inside]
what are some really cool optical illusions I can print and put on my wall? [more inside]
I want to get some wireless headphones so I can listen to my TV (A) without waking my son, and (B) while our appliances are running (laundry, dishwasher, etc). Problem: the only audio out connector my TV has is optical. How could I connect a set of 3.5mm or 1.8mm headphones to this port? [more inside]
I love it when, in a film, there's a quick optical zoom on a frozen frame -- The 400 Blows, The Rules of Attraction, Beck's Devil's Haircut video. Have more, preferably with Youtube links? [more inside]
Asking for my father: I would like to locate a TrueType font that reproduces the characters of this optical illusion watch. [more inside]
This spotting scope is a high quality, rugged, beautiful piece of workmanship. Too bad I no longer have a use for it. Questions inside on how and where to sell. [more inside]
Home theater conundrum. Ok, so, what's the best way to wire this up? [more inside]
Help me solve an optical puzzle. How might I make this fictional camera obscura work, given the parameters of my fictional location? [more inside]
Are there any optical illusions that give the illusion of motion / general tripy-ness on a computer monitor at 32x32 pixels? [more inside]
How does this floating man optical illusion work?
So I've got an older Macbook with a broken optical drive (it takes heroic measures to get it to eject discs), and I'm trying to figure out the best way to replace it. [more inside]
How do I get better at using an binocular compound optical microscope? I'd like to hear hints and tips I'm also interested in theories as to why I find this such a challenge, as it seems to come naturally to most people. [more inside]
Using optical audio input on Macbookpro 15" and Edirol m10dx, but when I open garage band and arm the tracks it arms for .5 seconds ... then disarms. [more inside]
Where in Los Angeles can I get eyeglasses lenses (a fairly difficult perscription, at that) in an hour, or a day? [more inside]
Help me reconnect with my wireless optical mouse. [more inside]
Is there a way to selectively disable the CD/DVD drive in my computer? [more inside]
My surround sound system keeps cutting out at higher volumes. Please help me find a way to stop it happening. [more inside]
Find-that-website filter: Website with a unique explanation of lens focal length with respect to photography and zoom lenses. [more inside]
I ruined a valuable DVD-R with scratches and need to fix it, pronto. Help!! Time issue as family wants to watch it on Christmas. [more inside]
Glass desk from Staples; Microsoft Intellimouse; Horrible mouse tracking -- how to fix? [more inside]
I've just bought a second-hand Shuttle XPC computer with an Nvidia sound card. One fault is bugging me: no sound through the analogue audio outs or headphone sockets on the front or back, even when the operating system volumes are set to maximum. However, I have been told that the previous owner used the optical audio out. Is it possible that he could have disabled the analogue sound somehow? If so how might I re-enable it?
Glasses filter. I bought my frames at Lenscrafters, but had the prescription filled, and the lenses put in the frames, by a doctor in my hometown. The lenses are the progressive type. My doctor mailed the finished glasses back, and left the markings on the lenses which help with adjusting and fitting the lenses the first time. After the first time fitting you erase the markings with acetone. Can I trust Lenscrafters to fit and adjust these? [more inside]
Tips for working with optical fibers (stripping, cleaving, aligning, etc.)? [more inside]
Trying to install a new optical drive in an old laptop. Windows recognises it, but the BIOS does not! [more inside]
The CD/DVD drive in this Mini is dead. What's the best place to buy a replacement Mac Mini optical drive? [more inside]
Does anyone know what's going on with Zenni Optical's website? I found that site from a Metafilter post a while back. I've been trying to access it for a few days now to check on my order and it's borked.
Looking for a basket of doctor/dentist/optical recommendations in Philly's main line. [more inside]
When I look at an image (on my LCD computer screen) that is composed of a combination of solid colors separated by black borders, I perceive the colors as appearing on different planes of depth, as if the image were three-dimensional. If I close either eye, the illusion collapses. Am I the only one affected by this, or is it a consequence of the way LCDs display color? [more inside]
This may be an easy one (at least I hope so - and no, it hasn't been easy for me). Is there a site, or more than one site, that is somewhat devoted to compatibilities in hardware? I'm looking at notebook cdrw/dvd-rom (slim) drives and it would be nice to know which models will - ostensibly, anyway - work with which laptops. Help if you can. Thanks.
I'm about to buy a new pair of eyeglasses. For my prescription I want high index progressive lenses. I want the high index so the lenses will be as thin as possible. I keep hearing that Zeiss lenses are better than other brands and would like to know if this is true before I spend my money. Costco does not sell Zeiss. Is whatever Coscto sells as good optically?
Is there any sort of recognised optical illusion or visual deficit that can make it hard to realize that a vehicle is stationary? [more inside]
I need help 'seeing' an optical illusion. Picture is inside. [more inside]
Should I have my eyes lasered again? [more inside]
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