The Slow-mo Guys (Gavin and Dan) are unable to film together due to the pandemic, so they come up with a plan to collaborate with Colin Furze, a British YouTuber, by using a fictional time machine to film a video in the past. They decide to film Colin's pulse jet engine in slow motion using a Phantom Flex 4K camera. The pulse jet engine creates explosions, producing a wave of pressure that travels through a tube, creating a jet effect. The group experiments with different angles and settings, capturing the engine's behavior in slow motion. They also test the engine's limits, causing it to produce flames and heat that are visible in the slow-motion footage. Despite some technical issues, including a leak in the engine's glass casing, they manage to capture impressive footage of the pulse jet engine in action. The video ends with the Slow-mo Guys thanking Colin for the opportunity to collaborate and inviting viewers to subscribe to their channels.
Here are the key facts extracted from the text:
1. Dan and the other person have been making videos for the Slow-mo Guys channel for eight out of the past ten years.
2. Dan and the other person live about 5,000 miles apart, on different continents.
3. Due to the pandemic, they are unable to travel to each other's locations to make videos.
4. The person on the phone call is Colin Furze, a YouTuber who has a time machine (or at least claims to have 50% of one).
5. Colin agrees to let Dan and the other person use his "time machine" to make a video that they will pretend was filmed in the past.
6. The video is filmed at Colin's workshop, which is filled with various gadgets and props.
7. The Slow-mo Guys are filming a pulse jet engine, which creates a lot of noise and heat.
8. The pulse jet engine works by creating explosions in a chamber, which sends a wave of pressure out the long and short ends of the tube.
9. The wave of pressure creates a near-vacuum in the chamber, which fresh air and oxygen rush in to fill, igniting a new burst of fuel.
10. The Slow-mo Guys use a Phantom Flex 4K camera to film the pulse jet engine in slow motion.
11. The camera is able to capture 1,000 frames per second, allowing them to see the details of the engine's operation.
12. The pulse jet engine is able to reach temperatures of over 1,200 degrees Celsius, which is the melting point of stainless steel.
13. The glass surrounding the engine's combustion chamber is able to withstand the heat without breaking.
14. The Slow-mo Guys are able to capture some impressive footage of the engine in operation, including flames and sparks.