Thursday, 2 August 2012

How to convert pdf files into e-books


All the e-books are notepad files.
If you want to create an e-book then type whatever you want to on a notepad pageand copy paste in your mobile phone. Your phone will easily open that file.
Similarly copy paste the pdf file on a notepad, it will become an e-book.
There are two types of notepads
- an old version which displays only black letters.
- a new version notepad++ which displays colourfull letters.
One of thedrawback is that an e-book don't display images.
Also only notepad i.e a file saved as .txt works as an e-book whereas wordpad , word , excell ,etc don't.

Friday, 6 July 2012

How to make an Air Thermometer


Air Thermometer
 Requirements


 - A used electric bulb.

 - A one-holed rubber stopper with a 60cm glass tubing. The stopper must fit tightly into the neck of the bulb.

 - A candle.

 - A wooden stand.

 - A piece of paper.

 - A bottle of water.

 - A thermometer.

 - Tacks and adhesives.



 Procedure



How To make a Snake Windmill

 Snake Windmill
 Requirements



 - A piece of carboard.

 - Red colour paint.

 - A pair of scissors.

 - A cotton reel.

 - A pencil.

 - A cork.

 - A heater.



 Procedure




- Draw a spiral an the cardboard and colour it red.

 - Cut along the spiral and pull it out a little, so that it looks like a coiled snake.

 - Fix the tail of the snake to the cork and pin it to the lead of the sharpened pencil.

 - Attach the pencil to the cotton reel and hold it above a heater.

 Your windmill is ready....



How to make a Whirl Fan



Whirl Fan
Requirements


 - A thin circular tin disk.

 - A pair of scissors or cutters.

 - A knitting needle.

 - Pliers.

 - A cork.

 - A candle.

 - A matchbox.



Procedure