L7. Warming Up(2-3): Group 3 by 이동후 https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687 Appropriate Technology en-us 2021-10-09 09:46:33 UTC 2026-01-02 07:46:19 UTC hello@padlet.com https://padlet.net/icons/png/1f44d.png 1. the meaning of appropriate technology (20321 문지후) https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1815652019 Appropriate technology is a movement and its manifestations aimed at improving the quality of life in less developed countries.  ]]> 2021-10-14 01:55:00 UTC https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1815652019 2. Its Real Life Example - 난방 텐트 (solar heating tent) (20321 문지후) https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1815682280 Solar heating tent was invented by Sonam Wangchuk. It is a portable military tent that can be heated through solar panels. It was first used in Indian army. The front end of the tent is called the Greenhouse section, which uses solar energy to be heated. Once sun ray enters the panel, the surrounding insulator operates so that the heat does not leave the tent. 

My opinion: The tent is portable and heated by solar energy, which happens to be a renewable source of energy. I think it is very useful and effective in an army since it's easy to manipulate. It's also eco-friendly and reduces pollution. ]]> 2021-10-14 02:07:36 UTC https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1815682280 Heated Tents - 20307박현민 https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1815741123 2021-10-14 02:31:31 UTC https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1815741123 2. Its Real Life Example: Soccket Ball- 20309 이상원 https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1816864206 By whom and when?
Soccket Ball was made by Harvard engineering students in 2013.
How it got started?
There are still tens of millions of poor people in Brazil. So I go to bed early because there is no power at night and the soccer during the day. Children also sleep earlier than relying on candles to study. We made socket balls for these poor.
How it operates?
Soccket Ball allows you to use the led lamp for 3 hours even if you play with the ball for 30 minutes. This ball is made of waterproof material and has strong durability. It is equipped with a gyroscope mechanism inside, which collects kinetic energy generated while playing with a soccer ball, converts it into electrical energy, and accumulates it in the battery.]]> 2021-10-14 12:33:34 UTC https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1816864206 Universal Nut Sheller 20301 강재호 https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1837819624 Universal Nut Sheller was made by Jock Brandis.Prior to Nut Sheller,growing and harvesting peanuts in Africa was a time and labor intensive affair relegated to woman and children.This item is used by peanut farmers in Africa.]]> 2021-10-23 10:19:56 UTC https://padlet.com/LEEDONGHU/ga9dp4zm2wn7cyhn1645023687/wish/1837819624