Watch incredible timelapse footage of waves of colour produced in an oscillating Belousov–Zhabotinsky or BZ chemical reaction. For more about this test read here: http://ow.ly/S4NHn | Science Photo Library

50K views · 336 reactions | High Frequency generation using Crystal Oscillator. Recall the external crystal oscillator used with a microcontroller. Internally, similar circuit function to generate clock pulse. #Electronics | Electronics Byte | Facebook

How optical clocks are redefining time and physics ⏰️⌛️ Atomic clocks record time using microwaves to measure the frequency of quantum vibrations of electrons. They are the basis upon which a second is defined. But there’s a new kid on the block, the optical clock, which boasts an even higher level of accuracy. Is it time to redefine the second? Tap link to learn more: https://www.newscientist.com/article/mg26635372-500-the-epic-quest-to-redefine-the-second-using-the-worlds-best-clocks/ | New Sc

How atomic clocks measure time more accurately ⌚️ If you apply an electric current to a crystal, it vibrates about 32,000 times a second. This frequency oscillation gives a more accurate measure of time and is the basis of atomic clocks, a technology born from the Second World War. Early atomic clocks vibrated at around 5 billion times a second. Current iterations get to 430 trillion energy transitions per second or more, allowing for far more refined definitions of time. Tap link to learn more: