🔬Glass cracking begins as a circular shape and then quickly expands.
🚀The crack propagates through the glass at an astonishing speed of 4,758 feet per second.
🌌The phenomenon of glass cracking at high speeds is reminiscent of an explosion.
🎥By using high-speed cameras, we were able to capture the entire process in incredible detail.
🔍The crack follows a curved path, even in a flat, rectangular piece of glass.
How do you measure the speed of glass cracking?
—We measured the time it took for the crack to propagate through each foot of glass and calculated the average speed.
What was the fastest speed recorded?
—The crack reached a speed of 4,758 feet per second or Mach 4.2.
Does the crack also move vertically?
—The crack primarily expands in a horizontal direction, but the edge of the crack does curve slightly.
Why does the crack start as a circular shape?
—The circular shape is likely due to the stress distribution within the glass.
Can the speed of glass cracking be increased?
—Yes, by using higher frame rates and lower resolution cameras, we can capture even faster crack propagation.
00:00Gav and Dan from The Slow Mo Guys explore the speed at which glass cracks.
01:01They discuss the limitations of their previous glass cracking experiment and introduce a new setup.
02:00The high-speed cameras capture the moment of glass cracking in stunning detail.
03:35They demonstrate the different frame rates and resolutions of their cameras to achieve higher speeds.
05:07Gav and Dan measure the time it takes for the crack to propagate through each foot of glass and calculate the average speed.
06:36They discuss the unique shape and behavior of the crack, which starts as a circle and expands in a curved path.
08:16The aftermath of the glass cracking reveals the intricate patterns and textures created by the high-speed impact.
09:37Gav and Dan wrap up the video and prepare to clean up the shattered glass.
