UBC

 uniform building code 

week 9

we talked with mr. Conner. we learned about electricity.
 

source of U.S electricity generation

 nature gas, coal, and nuclear energy. 

Edison

they find it in July 4th in 1886

they find it in Visalia

what is the difference between AC and DC

 Alternating Current (AC) is a type of electrical current, in which the direction of the flow of electrons switches back and forth at regular intervals or cycles. ... Direct current (DC) is electrical current which flows consistently in one direction.

week 8

  we worked on the farm and we planted some plants. we designed the window and we make some pancake. 

week review

 this week we worked at the farm and we did the scale drawn and we use demesnes from the scale to draw the scale of rm 13.