Experiment of December 10, 2024:

The time to submit an answer is over. You can now view the solution of the experiment.

Solution video:

Note: Please log-on first to gain jokers for viewing the solutions.

You need to view the complete video to collect additional jokers. Your joker status is shown on the results page.

Experiment:

Question:

What does she observe in particular at the long end of the folding rule?

A) The end of the long side of the rectangle is closer to the plumb line.

B) The end of the long side is closer to the plumb line at the right angle.

C) The end of the long side is equally close to the plumb line in both constructions.

D) The right angle falls off the hook immediately.

Advice of the day:

If you fold the ruler like Ms. Santa does, one side has two links and the other has three. We call the side with three links the "long side".