STRAW SPINNER - ENGLISH - 20 MB.wmv

Summary

Key Points

• The video demonstrates how to construct a simple rotating straw turbine using basic materials like a stiff straw, a needle, tape, and copper wire. 0:06
• Begin by cutting a stiff straw to approximately 2 cm and creating a neat, through-hole in its center with a long needle. 0:16
• Take a few centimeters of copper wire and form a small loop at one end by winding it around the needle. 0:22
• Thread the unlooped end of the copper wire through the straw's hole, using the initial loop as a stopper on one side. 1:02
• Prepare a separate stiff straw to act as a blowing pipe by making a small hole in it and weaving the long copper wire axle through this hole. 1:02
• Securely tape the copper wire to the blowing pipe, ensuring that the straw spinner remains attached but can still rotate without any hindrance. 1:17
• Once assembled, blowing through the pipe will cause the small straw spinner to rotate rapidly. 1:17
• Create a second identical loop at the other end of the copper wire, effectively forming an axle on which the straw spinner will freely rotate. 1:22
• The technique can be extended to create a more advanced turbine design featuring four blades for improved performance. 1:37