Eduction for you

General Information - What is Thermal Expansion? When water is heated it expands. For example, water heated from 90°F to a thermostat setting of 140°F in a 40 gallon hot water heater will expand by almost one-half gallon. This is because when water is heated, its density decreases and its volume expands (see below). Since water is not compressible, the extra volume created by expansion must go someplace. During no-flow periods in a system, pressure reducing valves, backflow preventers, and other one-way valves are closed, thus eliminating a path for expanded water to flowback to the system supply. Hence, system pressure increases.Temperature vs DensityThermal expansion of water in a closed plumbing system can create a number of annoying and potentially dangerous problems. These include: the build up of unusually high pressure in a system (even when a pressure reducing valve is installed); pressure surges; and the chronic or continuous dripping of a temperatureand pressure (T...

Enter the same text into multiple Excel cells at once In  Microsoft Excel , you can enter the same data or text into multiple cells at once using the below simple steps. Highlight  all the  cells  that you want to have the same text. Type the text you want. When done instead of pressing enter press  Ctrl+Enter . After completing the above steps, the text will automatically be entered into all highlighted cells. This tip can be very useful any time you have data that has the same prefix and just need to add something to the end of each cell. For example, the above steps were been done to create "computer hope" in all the cells as shown in the picture. Once completed, I could press  F2  on a selected cell, go to the end, and add "1" to make the cell "computer hope 1". I could keep doing this to have computer hope 1 through 16. 

How to move the mouse cursor with the keyboard in Windows If you find it difficult to move the  mouse  or want to have an alternative way to the mouse using the arrow keys on the  numeric keypad follow the steps below. Microsoft Windows users can enable the accessibility feature to move the mouse using their arrow keys by following the steps below. Tip:  In addition to the steps below, pressing the shortcut key  Alt + Left Shift + Numlock  also enable  Mouse Keys . Click Start, Settings,  Control Panel . Within the Control Panel open  Accessibility Options  or  Ease of Access Click the Mouse  tab . Check the "Use Mouse Keys"  check box . If you want to increase the speed or change any other settings, click on the Settings  button . Click Apply and then close out of the box. After performing the above steps the numeric keypad can be used as the mouse by using the up, down, left, right, and all the dia...

Shortcut keys ABCs Shortcut keys help provide an easier and usually quicker method of navigating and using computer software programs. Shortcut keys are commonly accessed by using the  Alt  (on IBM compatible computers),  command key  (on Apple computers),  Ctrl , or  Shift  in conjunction with a single letter. The de facto standard for listing a shortcut is listing the  modifier key , a  plus symbol , and the single  character . In other words, "ALT+S" is telling you to press the Alt key and while continuing to hold the Alt key, press the S key to perform the shortcut. In addition to the shortcuts listed on this page, users can find the shortcut keys to their most popular program by looking for underlined  letters in their menus. For example, the picture to the right has an underline on the "F" in File which means you can press the Alt key and F to access the File menu. Note:  Some programs require the user press and h...

Top 10 keyboard shortcuts everyone should know Using keyboard shortcuts can greatly increase your productivity, reduce repetitive strain, and help keep you focused. For example, highlighting text with the keyboard and pressing Ctrl + C is much faster than taking your hand from the keyboard, highlighting the text using the mouse, clicking copy from the file menu, and then putting your hand back in place on the keyboard. Below are our top 10 keyboard shortcuts we recommend everyone memorize and use. Ctrl + C or Ctrl + Insert Both  Ctrl + C  and  Ctrl +  Insert  will  copy  the  highlighted  text or selected item. Ctrl + V or Shift + Insert Both the  Ctrl + V  and  Shift + Insert  will  paste  the text or object that's in the clipboard . Ctrl + Z and Ctrl + Y Undo  any change. For example, if you cut text, pressing this will undo it. This can also often be pressed multiple times to undo multiple...

Microsoft Excel shortcut keys Below is a listing of all the major  shortcut keys  in  Microsoft Excel . See the  computer shortcut page  if you are looking for other shortcut keys used in other programs. Shortcut Description F2 Edit the selected  cell . F3 After a  name  has been created F3 will paste names. F4 Repeat last action. For example, if you changed the color of text in another cell pressing F4 will change the text in cell to the same color. F5 Go to a specific cell. For example, C6. F7 Spell check selected text or document. F11 Create  chart  from selected data. Ctrl + Shift + ; Enter the current time. Ctrl + ; Enter the current date. Alt + Shift + F1 Insert New  Worksheet . Alt + Enter While typing text in a cell pressing Alt + Enter will move to the next line allowing for multiple lines of text in one cell. Shift + F3 Open the Excel  formula  window. Shift + F5 Bring up search box. Ctrl + 1 O...

Microsoft Word shortcut keys Below is a listing of all the major  shortcut keys  in  Microsoft Word . See the  computer shortcut page  if you are looking for other shortcut keys used in other programs. Shortcut Description Ctrl + 0 Adds or removes 6pts of spacing before a paragraph. Ctrl + A Select all contents of the page. Ctrl + B Bold  highlighted selection. Ctrl + C Copy  selected text. Ctrl + D Open the  font  preferences window. Ctrl + E Aligns the line or selected text to the center of the screen. Ctrl + F Open find box. Ctrl + I Italic  highlighted selection. Ctrl + J Aligns the selected text or line to justify the screen. Ctrl + K Insert link. Ctrl + L Aligns the line or selected text to the left of the screen. Ctrl + M Indent the paragraph. Ctrl + P Open the print window. Ctrl + R Aligns the line or selected text to the right of the screen. Ctrl + T Create a hanging indent. Ctrl + U Underline highlighted s...