Harmonic oscillation in a levitated water drop Ultrasonic standing... waves levitate a water droplet and flatten it into a disk. Modulating the sound at its resonance frequency excites harmonic shape modes creating rotating "star drops"show more

IN 1953, A WORLDWIDE AGREEMENT WAS MADE BASED ON... AN IDEA BY THE ROCKEFELLER FOUNDATION TO CHANGE THE FREQUENCY OF MUSIC. THEY CHANGED IT FROM IT'S NATURAL HARMONIC RESONANCE 432HZ TO THE CURRENT CONSCIOUSNESS SUPRESSING 440HZ.show more

Science 8 students are visualizing waves in Physics. Longitudinal... sound waves from Mr. Mitchell’s trumpet are being transferred into a visual standing wave at the right resonant frequency. Physics is fun!! 😃🔥 #sridge #sridgeacademics #physicsfunshow more

That’s insane! 🤯 A student built an acoustic levitation... divide with an Arduino board. He built it using an Arduino Nano, a motor driver, and 60 ultrasonic transducers that can levitate low-density objects in place indefinitely. The transducers send out 40 kHz waves that create standing waves. The interference pattern produces nulls that trap objects. High-pressure areas form below and above the object, locking it in the low-pressure area between them. The transducers produce two sound waves moving in opposing directions at the same frequency and amplitude. The effect is that the low-pressure areas don't appear to move, like whipping a rope from both ends and having the wave meet in the middle. Sound waves are oscillating at high and low pressures. By creating a sound wave that doesn't move forward (a standing wave), you create areas of constant pressure. 🔉 Objects get trapped in the null points between high-pressure zones. The craziest part is that this was made more than 7 years ago! DIY levitation 😮‍💨 Reddit link: ~~ ♻️ Join the weekly robotics newsletter, and never miss any news →show more

A tetrapod is a concrete block designed to prevent... erosion by dissipating wave energy along coastlines. Its tetrahedral shape allows water to flow around it, reducing the force of incoming waves This is how they are madeshow more

🧊A dramatic calving event at Alaska’s Holgate Glacier was... captured on camera, sending massive chunks of ice crashing into the water and creating a spectacular splash.show more

Edge-induced Faraday waves happen when you rub the rim... of a bowl making the edge vibrate, this vibrates the water at the edge and the motion spreads. When the vibration gets strong enough, the flat surface breaks into regular standing wave patternsshow more

A lion was calmly drinking water at the riverbank... when a crocodile suddenly lunged from the water and grabbed its leg with powerful jaws. The lion was caught completely off guard, turning a peaceful drink into a terrifying struggle. The dramatic encounter shows how dangerous every moment can be in the wild.show more

In ancient Egypt, if you were bitten by a... snake or stung by a scorpion, you didn't just take medicine. You poured water over a rock. These carved stones are called cippi, or magical healing stelae. Egyptians believed that water poured over the stone would absorb the healing power of the spells and images carved into it. The afflicted person then drank the water or applied it to the wound. Each one shows the child god Horus standing on crocodiles, gripping snakes and scorpions in his fists. A protection spell, activated by water.show more

A gazelle was on the verge of dying from... extreme thirst, and when one of the people saw it, he decided to give it water.. but its reaction after the first drop was touching in a way you wouldn't expect!show more

This video looks like a rotating wheel. But watch... just one single sphere. It never rotates. Every ball only moves in a perfectly straight line back and forth. This is simple harmonic motion where linear position follows: x = R cos(ωt) By perfectly offsetting the timing of each straight path, the collective motion creates the illusion of rotation.show more

ALERT | Standing Flood Water on I-5 A vehicle... is stuck in high water at an underpass on the freeway. Avoid the area. Stay safe and updated with Citizen #ProtectTheWorld 📍Sun Valley, Californiashow more

Drop the line into dark water and wait for... a bite. Hold it steady while it pulls back. Then drag up whatever the swamp gives you. #DREADMOOR #indiegames #ScreenshotSaturdayshow more

A water wonderland with snow? 💦 Yes, you heard... that right — at Yixing Yaohu Town! Ride the waves, build a snowman — summer chill and winter magic, all in one place.show more

Spotted Lake in British Columbia, Canada is a rare... mineral lake that forms colourful “spots” in summer as water evaporates. High concentrations of salts and minerals separate into circular pools, creating its unique patterned look.show more