Here is a concise summary of the provided text:
**Title:** Can a Garbage Bag Parachute Lower a Heavy Object Safely?
**Experiment Overview:**
* Experimenters test if a garbage bag can be used as a parachute to lower objects of increasing weight safely.
* Objects used: a 0.5L bottle, a 5L bottle, a 20L barrel, and finally a 50L barrel (approx. 50kg, close to a person's weight).
**Key Findings:**
* The garbage bag parachute successfully slows down the descent of lighter objects (0.5L and 5L bottles).
* The parachute is modified and enlarged to accommodate heavier objects (20L barrel: successful, 50L barrel: unsuccessful due to excessive weight).
**Conclusion:**
* Theoretically, a garbage bag parachute could lower a person-sized weight, but only under very specific and unlikely conditions (e.g., much higher altitude for deployment).
* **Warning:** The experimenters strongly advise against attempting this with a human, emphasizing safety.
Here are the key facts extracted from the text, each given a number and kept as short sentences:
1. **Experiment Goal**: Determine if it's possible to lower a person from a height using garbage bags as a parachute (in theory).
2. **Initial Test Object**: A half-liter bottle was used as the lightest object for initial parachute testing.
3. **Bottle Weight Comparison**: A 50-liter barrel filled with water weighs approximately 50 kilograms, close to a person's weight.
4. **First Parachute Specs**:
* Made from a 60-liter garbage bag
* Cut into a square, folded, and shaped with a rounded bottom and a hole in the middle
* Eight small holes along the edges for string ties
5. **First Parachute Test Results**:
* Successfully landed with a half-liter bottle
* Falling speed: approximately 23.7 seconds per second (compared to 2 seconds without a parachute)
* Speed: approximately 36 kilometers per hour (without parachute)
6. **Second Parachute Test**:
* Used two 120-liter garbage bags for a 5-liter bottle
* Result: Parachute was not sufficient for the volume, needing improvement
7. **Enhanced Parachute Design**:
* Larger in size
* Improved shape, closer to a dome
8. **Successful Attempt**:
* A five-liter bottle was lowered with a speed of approximately 17.5 kilometers per hour
9. **Largest Parachute Made**:
* Consisted of 11 garbage bags, each 240 liters
10. **Final Test Results**:
* A 20-liter barrel was successfully lowered intact
* A 50-liter barrel (weighing approximately 50 kilograms) was not successfully lowered, exceeding the parachute's capacity
11. **Theoretical Feasibility**: It is theoretically possible to lower a person with some weight using garbage bags as a parachute, under very specific and unsafe conditions.
12. **Safety Disclaimer**: The experimenters strongly advise against attempting to replicate this with a person, emphasizing it's not safe under normal circumstances.