KH-Khác Free Energy Collection

Discussion in 'Sách tiếng nước ngoài' started by namth, Jun 27, 2017.

  1. namth

    namth Lớp 4

    Free electricity from the Phone Company
     

    Attached Files:

    namth, Jun 27, 2017
    #1
    cfcbk and angoc1234 like this.
  2. namth

    namth Lớp 4

    Home-made Solar Cells
     

    Attached Files:

    namth, Jun 27, 2017
    #2
    cfcbk and angoc1234 like this.
  3. namth

    namth Lớp 4

    Home-made Batteries
     

    Attached Files:

    namth, Jun 27, 2017
    #3
    cfcbk and angoc1234 like this.
  4. namth

    namth Lớp 4

    Windmills
     

    Attached Files:

    namth, Jun 27, 2017
    #4
    cfcbk and angoc1234 like this.

Share This Page