Here is a concise summary of the provided transcript:
**Title:** Comparing the Speed of a Bullet to Glass Cracking in Slow Motion
**Experiment:**
* Hosts (Gav and Dan) film a bullet's trajectory and glass cracking at 80,000 frames/second in a backlit quarry.
* The two events are filmed separately and then combined in editing for a side-by-side comparison.
**Key Findings:**
* The glass cracking is significantly faster than the bullet.
* This is because the speed of sound in glass (approximating the glass cracking speed) is much higher than the bullet's speed, which is slightly faster than the speed of sound in air.
**Discussion and Future Plans:**
* The hosts reflect on the interesting visual comparison, highlighting the large speed difference between the two events.
* They contemplate a future experiment using a much faster bullet to see if any can surpass the speed of glass cracking.
Here are the key facts extracted from the text, without opinions, with each fact numbered and in short sentences:
1. **Location**: The experiment was conducted in a harshly backlit quarry.
2. **Objective**: The experiment aimed to compare the speed of glass cracking to the speed of a bullet.
3. **Methodology**: The glass and bullet were filmed separately at 80,000 frames per second and then combined in editing.
4. **Measurement Tool**: Foot markers were placed on the glass to measure speed, with one marker being exactly 6 feet apart.
5. **Equipment**: A TMX 7510 camera was used for filming.
6. **Bullet Speed**: The pistol bullet travels faster than the speed of sound in air.
7. **Glass Cracking Speed**: The speed of glass cracking is equivalent to the speed of sound within glass.
8. **Comparison Finding**: The glass cracking was found to move faster than the bullet in the experiment.
9. **Frame Rate for Comparison**: Both the bullet and glass cracking were shown at the same frame rate (80,000 fps) for comparison.
10. **Camera Adjustment**: The camera frame was cropped to 1280x256 to focus on the glass and bullet path.
11. **Additional Experiment**: A second run was planned with the bullet passing behind the glass for further comparison.
12. **Guessing Game**: Participants attempted to guess where the bullet would reach when the glass cracked, for a synchronized comparison.
13. **Bullet Speed Relative to Sound**: The bullet moved slightly faster than the speed of sound.
14. **Implications of Speed Difference**: The significant speed difference makes the bullet's speed closer to the pistol's speed than to the glass cracking speed.
15. **Future Experiment Suggestion**: It was suggested to repeat the experiment with a really fast bullet to see if any can surpass the speed of glass cracking.