External activities of DY

Activities to make a decision of future and to solve for problems(not related with Biology). 

-In high school 

 1.  Make a bench to solve the problem that we can't sit on the outside bench after rain or snow.

              

   This bench have several advantage

    a. This bench can rotate so, we can sit up side or down side. so when the upper side is wet then we can easily rotate it and sit.

    b. There is moisture absorbent level. so whenever upper side is wet the other side don't wet easily.

    c. There is groove that makes water drop easily drop not form on the bench

    d. There is bearing in rotate handle, it makes rotate easiler. I insert it for older people. 

2. Competition of making