Go Green in Simple Ways

Saving money around the house is not as hard as you think. From energy savings such as gas and electricity to saving costs on insulation – there’s lots of ways you can save some money

• Electricty Usage
  • HEATING/COOLING – 60%
  • WATER HEATING – 20%
  • COOKING/REFRIGERATION – 10%
  • LIGHTING AND APPLIANCES – 10%

You make money by saving money

To some people it sounds simple. To other people it sounds stupid but the reality is, if you don’t spend as much, you don’t have to work as hard. If you don’t work as hard you’ll be happier, and have a healthier life and you’ll have more money.

The Concept

Standby Leds all use electricity

So how does it work I hear you asking? It’s quite simple. Despite how froogle you are, there is always way to save money. Many ways will be too extreme for you, many ways you’ll think why wasn’t I doing that before.

Consider this little example:

• Your electricity bill is $140 a quarter
• You are at work 8 hours a day, during this time your tv is on standby, with a Light Emitting Diode (LED) glowing indicating your tv is on standby

• The LED uses 20ma/h
• 20*8 = 160ma/day
• 365*160 = 58.4 amps over a year
• You pay $1.20 per amp of electricity you use
• Your tv is costing you $70.08 a year sitting idle whilst your at work

Many people will say, so what it’s only $70. Well yeah, but now think of the other things that are running during the day..

Observation

One thing I can tell you is that the more environmentalist you are the easier it is to save money. The reason, you have to be energy conscious to be an environmentalist.

Saving Electricity

Electricity is one of the biggest costs in any house – especially if you have an electric hot water system. There’s lots of ways to save electricity around the home. These include:

• Using timers on devices which you don’t use during sleeping hours (though make sure the timer doesn’t use more than the devices)
• Turning off unused lights
• Replacing incandescent light globes with energy saving fluro or led based lights
• Unplugging devices you aren’t using. (A power supply plugged in but not in use still draws power)
• Install Solar panels and use them
• Choose a electricity supplier that has off peak rates, and make use of them

Heating & Cooling

With heating and cooling consuming the majority of the cost of any house, it’s important to look at ways to minimize cost regarding these items.

Fridge / Freezer

The main consumers for any house hold is the Fridge/Freezer. This one item must be running 24×7 and hence uses a good chunk of power, hence costs you a lot. You can minimise the cost of the refrigerator by:

• Turning the thermostat up a little (make it warmer)
• Pack your freezer tightly – a tightly packed freezer is more efficient
• Make sure your door seals are in good order
• Don’t open the Fridge door for extended periods of time
• Turn off a second/third/forth fridge if it’s not being used extensively

Heat Leakage / Radiant / Glass

Another killer when it comes to heating and cooling is glass. Many homes could save huge amounts of money by doing simple techniques to prevent heat leakage through there windows. Double glazing a window traps a layer of air between two panes of glass, air is an excellent insulator, glass is a terrible one. By installing double glazing you can save huge amounts on your heating and cooling bills.

However, double glazing is expensive. So try bubble glazing instead. It might not look as good but it’s sure is a lot cheaper and works even better!

The above article is taken from my friends website he is my very good Uni friend we have worked a lot on many projects

References

1. ↑ http://www.dulley.com/tip/t1120.shtml
2. ↑ http://mtbest.net/bubble-glazing.pdf
3. http://clearchain.com

Useful External Links

• http://en.wikibooks.org/wiki/How_to_reduce_home_energy_usage
• http://www.amazon.com/Home-Energy-Diet-Making-Energy-smart/dp/0865715300
• http://www.dulley.com/tip/ftip.shtml
• http://www.mtbest.net

Find the energy released in the alpha-decay?

Find the energy released in the alpha-decay

²³⁸₉₂ U ²³⁴₉₀ Th + ⁴₂ He

Solution:
For this we shall need the masses

		M238.050786 u ,
		M234.043583 u ,
		M4.002603 u ,

from which we find the mass difference to be

238.050786 – (234.043583 + 4.002603) = 0.0046 u .

This corresponds to an energy of

E = mc ² = 0.0046 u x 931.5 c ² = 4.29 MeV .

Thus, the reaction releases an energy of 4.29 MeV.

Calculate the total binding energy of 2010 Ne.

Solution:
By Table 29.3 in the text, we see that ²⁰₁₀ Ne has a mass of 19.992439 u. Since Neon has 10 protons and 10 neutrons, the mass deficiency is

10 x 1.007825 + 10 x 1.008665 – 19.992439 = 0.172461 u .

This corresponds to an energy of

E = mc ² = 0.172461 u x 931.5 c ² = 160.6 MeV .

Thus, the binding energy is 160.6 MeV, or about 8.0 MeV per nucleon.

Suppose that the sun consists entirely of hydrogen?

Suppose that the sun consists entirely of hydrogen and that the dominant energy-releasing reaction is

4⁴₂ He + 22 + .

If the total power output of the sun is assumed to remain constant at

3.9 x 10²⁶ W, how long will it take for all of the hydrogen to be burned up? Take the mass of the sun as

1.99 x 10³⁰ kg.

Solution:
We first find the total number of hydrogen atoms in the sun by calculating

= 1.192 x 10⁵⁷ atoms .

Now, the reaction quoted has a mass difference of

4 x 1.007825 – (4.002603 + 2 x 0.000549) = 0.027599 u ,

which corresponds to an energy of

E = mc ² = 0.027599 u x 931.5 c ² = 25.71 MeV .

Since each individual reaction consumes 4 Hydrogen atoms, the total energy available in the sun is

1.192 x 10⁵⁷ atoms x 25.71 x 10⁶ x = 1.225 x 10⁴⁵ J .

The lifetime of the sun can then be estimated as

x x x = 9.96 x 10¹⁰ yr .

Thus, this gives an estimated lifetime of about 99.6 billion years.

How to disable User Account Control (UAC) for Normal(Non Admin) User

This is an easier method that you can use to do the same thing from the GUI interface. To recap my earlier article, UAC is ANNOYING.

Note: Disabling UAC will lead to a less secure system, so be warned.

Open up Control Panel, and type in “UAC” into the search box. You’ll see a link for “Turn User Account Control (UAC) on or off”:

On the next screen you should uncheck the box for “Use User Account Control (UAC)”, and then click on the OK button.

You’ll need to reboot your computer before the changes take effect, but you should be all done with annoying prompts.

User Account Control(UAC) Tweak just for Administrators

If you can’t stand the User Account Control prompts, but you’d still like to retain a little bit of security, you can disable it for Administrator accounts only. What we’ll be doing is actually changing Windows Vista to automatically elevate the privilege level for administrators without prompting.

Note: Disabling UAC will lead to a less secure system, so be warned.

The nice thing about doing it this way is that regular users as well as Internet Explorer still run as regular users, and would still use the normal security mechanisms.

Disable on Windows Vista Business or Ultimate

To configure this setting on Windows Vista Business and Ultimate, you can use the Local Security Policy configuration. Just type in secpol.msc into the Start menu search box and hit enter.

Now browse down to Local Policies \ Security Options

Find the following in the list: “User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode” and double-click on it.

Change the setting to “Elevate without prompting”. You should be all done.

Disable for Windows Vista Home

For Windows Vista Home users, the Local Security Policy doesn’t come with the distribution, so you’ll have to use the following registry file.

Just download, extract and double-click on the registry hack file to add the information into the registry. That’s all there is to it. Update: I’ve added in another registry hack file to re-enable UAC again.

Download DisableUACforAdmin Registry Hack