How to Do a Back Handspring. The back handspring is a basic building block for many gymnastics or cheerleading routines. To do a back handspring, you have to fall backwards, land upside-down on your hands, and push upwards to land back on your feet.
Generally, they take the form of puzzles which must be solved. The puzzles may be visual, as in the case of pattern recognition games, or they may involve plays on words and numbers. Logic puzzles are also brain teasers.
Brain waves are divided into five different groups: 1  Delta Waves (0.5 â 3 Hz) Ã  these are the slowest types of brain waves and are associated with deep, dreamless sleep. 2  Theta Waves (3 â 8 Hz) Ã  these brain waves are also associated with sleep but have been found in Zen meditators during meditation practice.