Introduction: How to Make an Anemometer

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Materials:

  • 5 cups
  • 2 straws
  • Pin
  • Pencil with an eraser at the end
  • Tape (optional)

Step 1: Making the Base

Create 2 pairs of holes (4 holes in total) that intersect with each other perpendicularly as shown above, as well as one underneath.

Step 2: Making the Secondary Cups

Punch a pair of holes into four cups as shown above.

Step 3: Putting Them Together

Put a straw in each pair of holes of the base cup (2 straws), and put a cup in each end, with all of them facing the same direction as shown above (you can use tape to secure the cups).

Step 4: Finishing It

Stab the pin into where the straws intersect and insert the rubber end of your pencil into the point of the pin. Now you've finished!