How to throw a "traditional shaped returning" boomerang
Here is my most easy way to make a working paper boomerang
Why Do Boomerangs Come Back? | Earth Lab
Coconut Leaf Boomerang | Easy Boomerang Making | Tamil Experiment
In astronomy and observational cosmology, The BOOMERanG experiment was an experiment which measured the cosmic microwave background radiation of a part of the sky during three sub-orbital (high-altitude) balloon flights. It was the first experiment to make large, high-fidelity images of the CMB temperature anisotropies, and is best known for the discovery in 2000 that the geometry of the universe is close to flat, with similar results from the competing MAXIMA experiment.