The Piezoelectric Crystal Ultrasound Uses to See Through Stuff

Physics, piezoelectricity / , , /
piezoelectric-crystals-used-in-ultrasound

There are piezoelectric crystal ultrasound employs to detect matter through matter, probing only with sound. Ultrasound waves, also known as ultrasonic waves, are simply sound waves read by a special type of microphone, usually around 1.8-5 MHz (acoustic frequency). This is 1.8-5 million cycles per second. Just like sound, ultrasound travels through matter and bounces […]

The Piezoelectric Crystal Ultrasound Uses to See Through Stuff Read More »

Lucid Dream Easily – Unique and Concrete Methods to Strengthen your Dream Muscles

Lucid Dream / , , /
lucid-dream-easily-guide-methods

Most lucid dreaming guides I found to always say the same things. Keep a dream journal, do reality checks, and set alarms so you can wake up and fall back asleep hoping to re-enter lucid. These are really good tips but ignore a lot of the mechanics of lucid dreaming and really just set the

Lucid Dream Easily – Unique and Concrete Methods to Strengthen your Dream Muscles Read More »

Rotational Symmetry of a Parallelogram: Clear Working out

Symmetry / , , , /
rotational symmetry of a parallelogram

Fun introduction to symmetry and a common geometry lies here. Parallelograms also include rhombuses when sides are equal, rectangle when angles are equal, and square when both sides and angles are equal. Once you see the rotational symmetry of a parallelogram, you can see the rotational symmetry of all 4 four-forms much simpler. How To

Rotational Symmetry of a Parallelogram: Clear Working out Read More »