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Answer by Charlotte L
i think this will work…
Go to apple icon on the top bar and click system preferences then click the energy saver lightbulb icon. Then click Battery and you can select how long you want your personal to be left idle before the display goes to sleep.

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Answer by Paul B
Does NASA track and keep records of the amount of solar energy radiating throughout the solar system?
Yes.

Do they record the fluctuations in energy levels? Yes.

Have any parallels to Global Warming been made?

Slight oscillation in upward trend of global warming.

Where can that information be obtained? http://en.wikipedia.org/wiki/File:Solar-cycle-data.png through Wikipedia “Solar variation”; see refs therein for primary sources

Do the temperature changes on Mars parallel those on Earth? As I comprehend it,sometimes yes, sometimes no

To answer the question behind the question, solar fluctuations do not account for the current upward trend in temperature. A reduction is solar output does explain why the increase has been slower in the past decade than the decade before. Solar output variation might well have been responsible for the Tiny ice Age, since even though we do not have solar intensity records going back to then, we have sunspot counts which are a good proxy.

Answer by virtualguy92107
Sure, so do a number of other governmental agencies in the U.S. and abroad, each solar observatory in the world, some special-purpose satellites, and a worldwide network of amateurs. I give one reference, with graphs, there are many. The info is of course correlated to climate change, no significant effect on the current manmade climate change has been noted. No other planetary temperature changes correlate in either timing or effect with Earth’s anthropogenic global warming.

Answer by Dana1981
I do not think NASA does specifically, but there are a number of organizations which do.

Satellites have been monitoring solar activity since 1979. Over the past 31 years, solar activity has remained absolutely flat on average. Here is the data:

http://www.acrim.com/RESULTS/Earth%20Observatory/earth_obs_fig27.pdf

Scientists have also put together data on solar activity from much further back using various proxies. For example, when there are more sunspots it also means there is more solar activity, and people have been monitoring sunspot number for centuries. Here is some longer-term data.

http://www.mps.mpg.de/images/projekte/sun-climate/climate.gif

http://solar-center.stanford.edu/sun-on-earth/600px-Temp-sunspot-co2.svg.png

As you can see, the current global warming is clearly not being caused by the Sun, since solar activity has not increased in over 50 years. This is the conclusion of each scientific study on the subject.

http://www.skepticalscience.com/solar-activity-sunspots-global-warming.htm

We do not have enough information about the temperature changes on Mars to compare them to those on Earth. We do not even know for sure if Mars is warming, let alone how much. But we do know that the Sun is not causing global warming on Earth right now.

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Answer by Shahnn
I always crank mine up to at least 80 degrees (F), following my role model, President Obama. I advocate you do the same.

Answer by Penus
around 125

Answer by Dale
65 is low in the first place, my home is on 78, it used to be on 68 before but we saved WAY more money on 78. It takes a while to get used to the heat but after you do its great

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Answer by classicsat
Yes, because it will not be running the compressor, just the fan.

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As a side question, will the heat of the glass and metal damage the solar cells contained inside? Or are they being protected by being within the enclosure?

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Answer by abgemacht
You could use a combination of fans and heat sinks, but it shouldn’t be necessary. It’s getting hot because it’s sitting in the sun, which it is designed to do. I would not worry about it.

Answer by Philipo
you could experiment with grade filters.By finding a portion of the spectrum that has tiny effect on the panel output you could in effect ‘put sunglasses on them’.Obviously there would be some loss but by picking the right colour frequency you could make the panels last much longer by getting them to run cooler and at a reduced power output.Check out theartrical /stage suppliers for ‘swatch books’.these are small sample gels for theatre and tv lighting and provide a pictoral spectrum grapgh.These filters are reasonably tough and waterproof,being just thin plastic gell sheet.If you do encase solar panels then personal fans ,small or large,can be used to cool the airspace.The heat could also be used as a by product of cooling

Answer by Ecko
Panels do heat in the sun, to about 60C. This causes a reduction in the rated output as the voltage is reduced. The rating is for 25C. There is tiny you can do to improve the cooling except make sure they are well ventilated. When used for battery charging, a 12V panel has 36 cells, so there will still be enough voltage to charge the battery at 60C. Thus the system grants for the heating. I anticipate that heat sinks and fans could help, but the additional cost is not justified. The reduction is about 10-15% of the rated output, but for battery charging additional cells make up for this difference.

I have found that just lying a panel on the grass makes it heat enough to reduce the voltage enough that battery charging stops.

Thin film or amorphous panels have a reduced heating effect leading to claims of being more effective on an annual basis by orienting for maximum summer output (in a temperate zone anyway).

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Answer by Sahara
It should. I have done it before.

Answer by Oat
Yes, it would. I like vinegar with essential oils instead though since I cannot handle the fragrence of most softeners.

Answer by maggie mae
fabric softner and shaking the clothes really good before hanging,and using hangers where needed

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Answer by Claudia R
65F

Answer by Heatmizer
Evidently, they state the ideal temp is about 69-70 to save energy.. If you can tolerate it, keep it 65-66 and dress warm and you will save a lot on heating.

Answer by Christina
Articles I have read and notes from the gas/electric company advise 68 degrees.

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Answer by The Hulk
Your friend is wrong. That is a myth.

The idea that lights use extra electricity to begin up is a myth. You will save electricity each time you turn the lights off, no matter how short the OFF duration, and whether they are regular lights or fluorescents.

You might have heard that you wear out your lights quicker by cycling them off and on, but that effect is so small it’s not worth worrying about, and you can safely turn your lights off each time you leave the room, no matter how short the duration.

(All of the above was cut and pasted from the link below.)

Edit: The second link below has THIS to state on the subject:

Fluorescent Lighting:

The cost effectiveness of turning fluorescent lights off to conserve energy is a bit more complicated. For most areas of the United States, a general rule-of-thumb for when to turn off a fluorescent light is if you leave a room for more than 15 minutes, it is probably more cost effective to turn the light off. Or in other words, if you leave the room for only up to 15 minutes, it will generally be more cost effective to leave the light(s) on. In areas where electric rates are high and/or during peak demand periods, this period might be as low as 5 minutes.

Fluorescent lights are more costly to buy, and their operating life is more affected by the number of times they are switched on and off, relative to incandescent lights. Therefore, it is a cost trade-off between saving energy and money by turning a light off “frequently” and having to replace the bulbs “more” frequently. This is because the reduction in usable lamp life due to frequent on/off switching will probably be greater than the benefit of extending the useful life of the bulb from reduced use. By frequent we mean turning the light off and on many times during the day.

It is a popularly held belief that fluorescent lights use a “lot” of energy to get started, and thus it is superior not to turn them off for “short” periods. There is an increase in power demand when a light is switched on, and the exact amount of this increase depends on the type of ballast and lamp. The ballast provides an initial high voltage for starting the lamp and regulates the lamp current during operation. There are three basic types of ballasts: magnetic (of which there are energy-efficient and not so energy-efficient types), cathode-disconnect, and electronic. All types can operate two or more lamps simultaneously. There are three main methods that are used in a lamp’s ballast to begin the lamp: preheat, rapid-start, and instant-start.

Answer by Ken B
It does not take “a lot of electricity” to turn a light on — it uses the same energy as one that is already on.

And, even if it were true that it used more electricity, how much more could it use, versus the percentage of time the light is off versus on? Suppose you were to keep it on 8 hours a day. Do you really think it takes the equivalent of 16 hours of electricity to turn it on?

Now, there is some debate, as I comprehend it, as to the longevity of a typical filament lightbulb, and the wear that turning it on causes. (Have you ever seen a lightbulb burn out while it’s on? Or only at the instant you turn it on?) This is, of course, a completely different question.

Answer by Dims
It saves electricity turning lights off whet it is not needed.

But frequent turning lights on and off tears light bulbs at a higher grade.

So, if we talk about saving money, it is a question, what comes first.

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Answer by LittleWolf
True. “Electricity Vampires” have standby settings which draw a small but significant amount of power even when they are turned off. But beware that if you want the settings to be there, you can’t unplug these appliances for very long. And never unplug a modem or cable box — that could cost you a service call.

Answer by wowbango
Yes and no. Some appliances/devices have certain things that run even when the device is off. This could be something as easy as indicator lights, to clocks, to timers etc. If you unplug them, these things will not use electricity. However, the amount of electricity that MOST items consume is so irrelevant, that it might not even be worth going through all the hastle of unplugging everything. But to all their own.

Answer by Malibu K
Toaster, blender: you will not save anything. But anything with one of those tiny AC adapters on the end, you will save something. Your LCD TV, when off, uses about 40% of the power it does when it’s on, believe it or not!

If it has a remote control, it probably uses a decent amount of power when it’s off.

But you will save more power by moving your thermostat up a couple of degrees, and changing out your old fashioned bulbs for compact fluorescents.

Try this website: it’s pretty good, and the guy is entertaining.

http://michaelbluejay.com/electricity/

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Answer by pedro7of9
often wondered..i think a few degrees lower at night is a saver,,but in my home too low and furnace runs all day to bring up to normal maybe myth busters has looked at it.

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