עמוד:36

pace Stutf 1 Look at the pictures below . What do you think is the connection between the pictures and space exploration ? Discuss . 2 Read the following text to find out more about each of the items . Space-Age Homes What space products are in your home ? Many technologies were originally developed for the space program . Later , everyday uses were found for them . For example , laser technology was first developed to study the Earth ' s ozone layer . Today , laser technology is used in medicine . What spinoffs do you have in your home ? Cordless tools work on strong batteries that can be charged , used and then recharged . They are especially useful when a cord and an outlet are not available . Cordless tools are used in homes , in industry and hospitals . Food is cooked , quickly frozen and then slowly heated to remove the ice during the freezing process . These foods can be prepared by adding hot or cold water . Supermarkets are filled with ready-to-eat , freeze-dried products , such as soups , noodles , fruitjuices and coffee . Space pens can be used in extreme temperatures ( very high and very low ) and do not need gravity to make the ink flow . This means that you can hold the pen in any direction in order to write . Portable computers are small , powerful , and lightweight . There are many different kinds of laptop computers and handheld computers that are used at home , in the office or on the go . Polarized sunglasses protect the eyes from dangerous blue , violet and ultra-violet light . They also make it easier to see in strong sunlight . spinoff // . a benefit or product that is made as a result of doing something else . portable computers polarized sunglasses space pens cordless drill freeze-dried coffee

מטח : המרכז לטכנולוגיה חינוכית


לצפייה מיטבית ורציפה בכותר