
Lever Principle
Add, move or remove equal weights on a lever and compare the torques on its two sides.
Mechanics · Waves
Publishes HTML5 physics demonstrations with concise explanations and adjustable experiments.
walter-fendt.de3 selected projects, with credit and a path to the original.

Add, move or remove equal weights on a lever and compare the torques on its two sides.

Change source separation and wavelength, then move a measurement point to relate path difference to constructive and destructive interference.

Adjust spacecraft speed and compare ship and stationary clocks in a simplified inertial model; the display omits length contraction. English translation by Taha Mzoughi.
Original publication and update records, plus explicitly labeled repository milestones.
Lever Principle — an update dated in the linked source.
Lever Principle · Source Original source via Explainer ToolsAn Example of Time Dilation — an update dated in the linked source.
An Example of Time Dilation · Source Original source via Explainer ToolsInterference of Two Circular or Spherical Waves — an update dated in the linked source.
Interference of Two Circular or Spherical Waves · Source Original source via Explainer ToolsInterference of Two Circular or Spherical Waves — a publication record dated in the linked source.
Interference of Two Circular or Spherical Waves · Source Original source via Explainer ToolsAn Example of Time Dilation — a publication record dated in the linked source.
An Example of Time Dilation · Source Original source via Explainer ToolsLever Principle — a publication record dated in the linked source.
Lever Principle · Source Original source via Explainer ToolsPublishes HTML5 physics demonstrations with concise explanations and adjustable experiments.
This selection connects 3 projects across interactive. Follow the project links for the original experience; use the build log for dated context where evidence is available.
Compiled from public catalog attributions and linked original sources. Descriptions are editorial summaries, not statements made by the creator. This profile has not been claimed or endorsed.
Catalog sources gathered October 23, 2026. Primary-source access varies, particularly on social platforms. This is a selected portfolio, not a lifetime total. Images remain credited to their original creators.