Will keeping a low brightness level on my laptop ruin my eyesight? What is the optimum level of brightness for not messing with my eyesight, given everything else is constant?
Stop believing everything you hear. Reading in low light conditions does not cause permanent damage to the eyes. The kind of brightness a computer screen can generate also does not cause permanent damage to the eyes. Unless you happen to enjoy staring at the sun, brightness is generally not a major concern.Below are 15 extremely common myths regarding eyesight:Reading for prolonged periods in dim light can be harmful to the eyes.Children should not hold their books too close to read since this can harm their eyes.Wearing glasses that are too strong can cause eye damage.If children sit too close to the television, they may damage their eyes.Older people having trouble seeing should not use their eyes too much since they will wear them out sooner.People with weak eyes should rest their eyes often in order to strengthen them.Children who have a problem learning to read are likely to have an eye coordination problem and can be helped with special exercises.Cataracts have to be “ripe” before surgery can be done.People who wear glasses should be checked every year to see if a change is needed.Watching a bright television picture in a dim room can be harmful to the eyes.Ideally, more people should use an eyewash regularly.A blue eye can not be used for a corneal transplant into a brown-eyed person.Contact lenses can get lost behind the eye.A cataract is actually a film over the eye which can be surgically peeled off.Headaches are usually due to eyestrain.A little more detail on some of these myths is available here, from the Foundation of the American Academy of Ophthalmology: Eye Care Facts & Myths
Jehovah’s Witnesses, can you please explain this?
I want to strongly assert that I am not trying to be funny, I am not trying to insult anyone and I am not calling anyone names. I simply would like a reasonable and honest answer to this question. On numerous occasions there has been a change in policy and/or beliefs within the Jehovah’s Witnesses organization. There have been times when something was stated as fact then later the official position was changed making what was stated as fact no longer a fact and then still later the original position was reaffirmed making it fact once again. Each time there is a change it is explained as you are receiving more light. That brings me to my question. If you are someplace where more light is needed, then by definition are you not in darkness? If there is open the possibility that you may need more light in the future or are open to the possibility you may receive more light, then by definition are you not still in darkness? If something is “light” on one day, darkness the following day and then on yet another day light again, was it not in actuality always darkness by definition? If you have a friend a teacher or a parent who tells you something that turns out to not be true and that happens time and time again do you not at some point start to question everything that you are told by that individual? If God is a God of light, then how could today’s light be tomorrow’s darkness? The Bible teaches us that God is the same today, tomorrow and forever. If someone tells us that we need to now change our beliefs because God gave us darkness yesterday but today has given us light, then does that not leave only two possible courses of action? One is to question the knowledge, wisdom and truthfulness of God, and the other course of action is to question the knowledge, wisdom and truthfulness of the individual(s) that make that claim. I tend to think on a very deep and profound level and I believe I could make a list beforehand of every possible answer and I would come up with possible answers that no one else has even considered. But then I would be answering my own question, and my sincere hope is that someone will come up with something that I have not considered, something that will make sense to what seems to me to be an answerless conundrum. That conundrum is nothing more or less than how can something be both darkness and light? Your answer, please?
I want to learn powerpoint very well, what is the best book or way to learn all of the bells and whistles?
books will only take you so far. the way i learn a new program is to click on something and see what happens. if i am looking for how to do something specific, i go to the nearest bookstore (borders for me) and look for the answer in all the books. for the "best" book i would look on amazon.com. but remember, the "best" book is the one you actually use. you should also make use of all the great sources online for answers (this being one and microsoft support being the other)
Will reading novels and books on a smartphone damage my eyes?
Yes it can potentially do so. The reasons might be different lik:1. Small Screen size - Although, one can definitely zoom in, but then it’s not practical to move the page left-right, up-down after every few words.2. Screen brightness - It’s bit difficult to read in dim light and more the brightness, more the strain.But the, the fact is that world would never ever go back. Old is gold and trends come back, but again they come back with modified versions. Thus, we can always keep some safety precautions to avoid the damage:Take regular breaks - do not forget to blink your eyes often.Adjust the brightness - When reading at night with the lights off, read the content in the night modeAdjust the font size - personally, my phone is at highest possible font size.Maintain safe distance from the deviceGo for Kindle - Kindles are specifically designed to replace physical books. They are obviously much safer and provide better options.Thus, the summary is Yes, reading novels and books on a smartphone can damage our eyes if we do not take good care of them. This is then true even when we do not use smartphones.PS: I so love physical books and wish I had money and space to buy all I read and want to read somewhere. Make your own choice..:)
Help with playing video games at night without parents knowing?
Ok so I want to play CoD MW3 at night because sometimes I don't get to in the day. My parents room is really far away from mine BUT it's really hard to hear them coming. They come to check up on me sometimes and I'm scared they might catch me. I'm fine with playing with no volume at all and dimming down the brightness but still it's really hard to hear them coming. I need to now of a way to hear them coming so I can turn off my TV and pretend to go to sleep when im warned their coming. Any help on what to do to hear them coming? Also I try to close their door at night so I can hear the door open and go to sleep but the door doesn't even make that much noise so I can't hear it. I've tried all sorts of things like even putting a walkie talkie next to their door and next to mine but still it doesn't work. I have hardwood floor in MY room and THEIR room but once you step out its just regular floor. I just moved into this room and the doors are horrible, they are like see through glass-ish doors and there's no lock to them so they can easily see me. They come check up on me I'D say about maybe one or two times a night. I also tried to put a fishing line to their door and to something in my room so that when they open the door I can feel something pulling when their coming but I need something better. I say better as in more of a warning that their coming so I can just get the remote, turn off the tv, and go to sleep. And YES, my PS3 is in my room.
Why does my iPhone's battery drain quickly?
The first thing you may want to to is bring your iPhone into an Apple store. They can help you determine if it's a hardware issue.If it's not a hardware issue, below are a few things you can do to preserve battery life.One of the biggest battery drains is screen brightness. To make sure your brightness is not too high, swipe up from the bottom of the screen. You should see this pop up. From here, you can turn down the brightness if it's too high.The screens below are all available from Settings:Now, you'll want to see which apps are draining the most juice.Apple has battery usage stats built into the OS.To see them:1. (first to to Settings, as shown at the beginning above) Go to Usage2. Then click "Battery Usage."3. Voila! You can see which apps are using the most battery.To turn off apps' ability to auto-refresh in the background:1. (from Settings, as shown above) 2. Then go to Background App Refresh. 3. From here, you can toggle indivual apps off, or just turn all of them off, based on what you just learned about which apps are hogging battery.GPS is also a huge drain. Some apps are on all the time pinging your location. To adjust your location settings, and restore some sanity on your phone:1. From settings, go to privacy2. Then, go to "Location Services."3. Finally, you can scroll through the list of apps using your location. I noticed that Dropbox was a battery hog, so I turned its setting from "Always" to "Never." (all Dropbox needs my GPS for is to begin a camera upload; not a critical function, I can just open Dropbox every once in a while to begin a camera upload).My last suggestion is to turn off automatic downloads, app suggestions, etc from the App Store.1. From Settings, go to iTunes & App Store2. I turned all of these off. No automatic downloads of music, apps, books, or updates will happen. And Spotlight will use less juice hunting around on the App Store. I left Apps alone; this way the spotlight can still find installed apps on my device.If anybody from Apple is listening, stop the madness!!!! Either spend more energy on getting better batteries to us, or have your UX and engineering teams handle more of this in the background. It's crazy how fast my battery drains without doing these things.
How to make my laptop last a long airplane ride?
I have a Macbook Pro 15" with OSX 10.6.7 (if that matters haha) Anyway, my mom, dad, brother, uncle, cousin (and his wife) are going out to Yosemite park this summer. We're meeting up with my other uncle, aunt and other cousin there. We are flying out of Indianapolis International Airport and flying into San Fransisco International. I know it's a few hours but approximately how long is that flight and how can I make my laptop last that long? I have like 3 movies on my laptop, but I didn't know if it will last through 3 movies. I was going to put it on the least brightness and try to make the energy saving settings so it lasts longer, but are there any tips you use on long trips? I'm assuming it's about 6 hours, that's how long it took for us to fly from Chicago to there once.