We found out that the dimensionless time to open up the body for maximizing splash is within 1.1-1.5. In simple language, if a 5’7” person jumps from 1 m height into water in a 45° V-shape, they need to open up their body within 0.26-0.3 sec. Timing decreases as the jumping height increases (9/n)

Manubot with an initial V-shape of 45° opens up underwater, and we study the effect of the underwater body opening on the size of the Manu splash. We used dimensionless splash size and time to find the best underwater body opening time.... (8/n)

Interestingly, Manu divers open their bodies underwater in a roll and kickback motion. To study this, Daehyun made a robot, which we called a Manubot! (7/n)

We used solid projectiles with different V-angles to study the effect of V-shape on splash, and the 45° shape generated the fastest and highest splashes... (6/n)

We found out that manu jumpers hit the water in a V-shape with a V-angle of ~45°, a balance b/w safety and making the largest splashes. Go too wide, and you risk back injuries... (5/n)

The aim is exactly opposite from Olympic diving, where the air cavity is destroyed to minimize the splash... (4/n)

There are many ways to enter water while diving... Manu jumping is all about making the biggest splashes! But what is the best way to execute a Manu jump, and what is the science behind making a large splash? 🌊 (3/n)

On impact, a projectile deforms the water surface, creating a crown splash. The air cavity created by the projectile collapses, resulting in a Worthington jet, this is the manu splash 🌊 (2/n)