JET START!! Newton’s third law says that for every action, there is an equal but opposite reaction. If you blow up a balloon and let it go, it shoots across the room. The action of the air blowing backwards out of the balloon produces the reaction that pushes the balloon forward. Whenever you push or pull an object it pushes or pulls you with equal force. A jet engine also works according to Newton’s third law. A powerful fan sucks air into the engine. The air is heated inside a combustion chamber, where fuel is burned. The heated air expands very rapidly and rushes from the back of the engine. This creates a reaction force or thrust on the engine that makes the aircraft fly forward. The above content is taken from some books HOME

HOW TO TAKE A GOOD PICTURE?

HOW TO TAKE A GOOD PICTURE? **Hold the camera steady. If you are taking a picture of, say, a child, try and take the shot from her eye level. It gives a clearer image of the subject. To be more adventurous, you can change angles to highlight certain features later. **Play around with light. Pictures are best taken in natural light. A sunny day is not the only time to shoot. Use your imagination to try other weather and light conditions. **Use artificial light or flash when needed. Most cameras are equipped with an automatic flash option and some even have fill-flash setting (to light up only those areas of the picture that require more illumination). You can even use flash on sunny day. Dont move beyond your flash range (usually between four and ten feet). **some helpful web addresses are: http://www. kodak.com/eknec http://www.airshowfan.com/guide-to-digital-ameras-3.htm http://www.bbc.co.uk/arts/apictureofbritain/how_to/ **Buy an expensive camera only after you have mastered the basics.