Could You Fart Your Way to the Moon?

TL;DR

Farting cannot propel you through space effectively.

Transcript

[INTRO MUSIC PLAYING] Let's not beat around the bush. You know you've thought about it, and today we're going to answer it. Could you fart your way through space? [THEME MUSIC PLAYING] If space suits didn't put a firm barrier between you and the outside environment, space would kill you. But for the sake of this episode, let's take some biological... Read More

Key Insights

• The concept of using flatulence as propulsion in space is explored humorously, but scientifically shown to be ineffective due to insufficient thrust.
• Rockets work by expelling mass in one direction to propel in the opposite direction, similar to throwing a heavy object while on a skateboard.
• Flatulence in space would result in minimal movement due to the tiny amount of gas expelled and its low velocity.
• A single day's worth of flatulence could theoretically cover the Earth-Moon distance in 300,000 years, assuming no gravitational forces.
• To achieve significant movement in space using flatulence, one would need to break the sound barrier, which is practically impossible.
• Peeing in space offers a more effective propulsion method compared to farting, due to the greater mass and velocity of expelled urine.
• The video humorously suggests that throwing a physical object, like a burrito, would provide more recoil than flatulence.
• The discussion includes comparisons with sneezing and peeing, revealing that these bodily functions have similar exit speeds to flatulence.

Questions & Answers

Q: Can flatulence be used as a propulsion method in space?

While flatulence can technically propel a person in space, the thrust generated is extremely minimal. The tiny amount of gas expelled and its low velocity result in negligible movement, making it impractical for significant travel. The video humorously illustrates this concept but concludes that flatulence is not a viable propulsion method.

Q: How do rockets achieve propulsion?

Rockets achieve propulsion by expelling mass in one direction, which propels them in the opposite direction. This is similar to standing on a skateboard and throwing a heavy object forward, causing you to move backward. The propulsion is not dependent on igniting fuel, but on the expulsion of mass at high speed.

Q: What is the estimated travel distance using flatulence in space?

Using flatulence as a propulsion method in space, a single day's worth of flatulence could theoretically cover the Earth-Moon distance in 300,000 years, assuming no gravitational forces. The minimal thrust generated by expelled gas results in extremely slow movement, making it impractical for significant travel.

Q: Why is peeing more effective than farting for propulsion in space?

Peeing is more effective than farting for propulsion in space due to the greater mass and velocity of expelled urine. A full bladder can hold about half a kilogram of urine, providing 500 to 700 times higher recoil velocity compared to flatulence. This allows for faster movement and quicker return to a spacecraft.

Q: What comparisons are made with other bodily functions?

The video compares flatulence with sneezing and peeing, revealing that these bodily functions have similar exit speeds. While sneezes are often believed to travel at 100 miles per hour, studies show speeds closer to 4 meters per second, similar to the estimated speed of flatulence. Peeing, however, provides greater propulsion due to the larger mass of expelled urine.

Q: What is the moral of the video regarding space propulsion?

The moral of the video is that while you can technically use flatulence to propel yourself in space, it is an impractical method due to the minimal thrust generated. Peeing is a more effective propulsion method, and throwing a physical object, like a burrito, would provide more recoil than flatulence. The video humorously concludes that flatulence is not suitable for long-distance space travel.

Q: How does the video address common misconceptions about rocket propulsion?

The video addresses the misconception that rockets require ignition to achieve propulsion. It explains that propulsion is achieved by expelling mass at high speed, similar to throwing a heavy object while on a skateboard. Ignition is not necessary; rather, the expulsion of mass in one direction propels the rocket in the opposite direction.

Q: What additional resources does the video provide?

The video provides links to additional resources, including a method for weighing farts, a discussion thread with astronaut Chris Hadfield, and studies on the thrust of NASA's SLS Booster and the exit speed of sneezes. It also references the International Space Apps Challenge and offers contact information for further inquiries about space-related questions.

Summary & Key Takeaways

• The video humorously explores whether flatulence could be used as a propulsion method in space. It concludes that while technically possible, the thrust generated is too minimal to be effective for significant travel.

• Rockets propel by expelling mass, similar to throwing a heavy object while on a skateboard. Flatulence expels gas, but the thrust is negligible, making it impractical for space travel.

• Peeing in space is a more effective propulsion method than farting due to the greater mass and velocity of expelled urine, allowing for faster movement and quicker return to a spacecraft.