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18 tháng 5 2021

A long time ago I was doing a competition to take an aerial photograph using only some bits and bobs from a hardware shop. We were in rural countryside, and the other groups all came up with a design that involved a mechanical hammer to hit the shutter release. I came up with the idea of a magnet which would be released by an electric switch. We would send the camera up on a kite using electric wire as the kite string, all attached to a switch. Hit the switch, the magnet drops hitting the shutter release. It was great fun haring over the countryside looking for shops which would sell us the parts (on a sunday morning nearly 30 years ago). And the best bit was that we took by FAR the best picture!!!!

13 tháng 10 2021

Donate: books, blood, toys, clothes
Clean: streets, park, school, ...

13 tháng 10 2021

ít vậy

 

11 tháng 12 2017

i think the health is very important for many people.Because it helps many people comfortable and fun.Beside you will protect your body from environment and change weather.It also helps you not tired , bored ....you should protect your healthy by : if you go out,you should wear warm clothers , don't wear shorts clothers in cold weather....finnally, health is very very important 

23 tháng 12 2017

Các từ ngữ miêu tả chiều rộng trong không gian là

Bao la , mênh  mông , bát ngát ,bạt ngàn  

Đúng chưa nè

23 tháng 12 2017

bao la, rộng lớn, mênh mông, bát ngát, vút tầm mắt, thẳng cánh cò bay, trải dài . . . 

30 tháng 5 2018

       Tổ 3 của lớp 7a

Ai ai cũng giỏi cũng đều là gương

       Bạn nào bạn nấy kiên cường

Thi đua phấn đấu để làm trò ngoan.

      Thành Nam tuy ít nói cười

Nhưng luôn tốt bụng với người người ta

      Ngọc Ánh nhỏ nhắn xinh tươi

Luôn luôn học tốt cô thầy đều khen

      Bạn Hoa nết lại chăm làm

Thành tích cao vút không ai được bằng

     Sơn dù nghịch ngợm lăng xăng

Vậy mà sáng tạo điểm 10 bài văn

     Lớp tôi bạn giỏi bạn ngoan

 Tổ 3 vẫn nhất trong lòng của tôi.

3 tháng 4 2021

   Mình viết về vấn đề lũ lụt nha:

    Floods are a natural phenomenon. They cause tremendous havoc to human life and property but are sometimes also a blessing in disguise because they bring alluvial soil which is essential for crops. This is a great benefit compared io the havoc it creates. Floods are naurals calamities nad occur regularly in certain low lying area. The unexpected flood causes great misery. The rush of water demolishes houses and destroys homes. It inundates large areas under cultivation, wrecks public services and makes the life of the surviors miserable. Sometimes man is prepared for it and has learned to take advantage of floods to enrich their soil, trap fish and more logs of woods. Floods, however have always brought out the best in men. Men organise recus and relief activities for strangers without expectation of personalgain. Voluntary organisations organise relief camps and provide medical facilities. Floods bring out the best in men to the surface. People throughout the world make collections and airlift relief materials to the victims. The increasing incidence of floods can be reduced by contruction of damsand catchment areas. These activites can't be carried out by a single man, but can be achived only by thr Government as these require colossal resources, organisation and manpower. Every single man can contrinute to pevent foold by planting trees and preventing denudation of vegetable plots. Forestation is one of the best alternatives to alternatives to arrest floods.

1 tháng 9 2016

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