ASPIRADOR de PÓ levanta um CARRO? Nós testamos!

Summary

In this intriguing video, the creators attempt to lift a car weighing nearly a ton using only a vacuum cleaner and basic physics. The setup involves inflating a large cushion made of a durable plastic sheet using the vacuum's blowing function. As the air fills the cushion, it gradually lifts the car off the ground. Despite facing several challenges, such as punctures and the limitations of their equipment, they successfully manage to lift the car. The experiment demonstrates the principles of pressure and force distribution in an engaging and visually impressive way, while also linking the concept to real-world applications like emergency rescue tools.

Takeaways

• 😀 The experiment involves lifting a car using a vacuum cleaner and a large inflatable cushion made from plastic tarps.
• 😀 The basic setup includes a folded tarp sealed at the edges, connected to a vacuum cleaner set to blow air, inflating the tarp underneath the car.
• 😀 The first challenge was finding a strong tarp material that could withstand the weight and pressure without letting air escape.
• 😀 The initial tarp material used was not strong enough, as it started to unravel due to its woven nature, leading to a switch to a stronger plastic tarp.
• 😀 The adhesive challenge was solved by using contact glue, which allowed a stronger bond to the plastic tarp despite its tricky nature for adhesion.
• 😀 A 100W vacuum cleaner was used, which was not very powerful but still enough to lift the car when combined with the large surface area of the tarp.
• 😀 The experiment worked by distributing the car's weight across 80,000 small points (cm²) on the tarp, which reduced the weight per point, making it easier for the vacuum to lift.
• 😀 Although the vacuum was weak, the large amount of air required to inflate the tarp made it possible to lift the car, as the pressure became evenly distributed across the surface.
• 😀 The first attempt lifted only the rear of the car, requiring further adjustments and testing to get the car to lift evenly from all sides.
• 😀 After the tarp ripped during one attempt, the team used silver tape to patch the hole, allowing them to complete the test successfully with minimal issues.
• 😀 The final test demonstrated the ability to lift a much heavier car, the Amarok, weighing twice as much as the first car, showing the effectiveness of the technique.
• 😀 Pneumatic cushions like the one used in the experiment have real-world applications, including lifting heavy objects in the fire department and construction, showcasing the versatility of this technology.

Q & A

What is the experiment about in this video?

The video showcases an experiment where a vacuum cleaner is used to lift a car, demonstrating basic physics principles, particularly about air pressure and distribution.

How does the vacuum cleaner manage to lift a car?

The vacuum cleaner is used to blow air into a large inflated pad placed under the car. The air pressure underneath the car is evenly distributed, allowing the car to lift, despite the vacuum being relatively weak.

What material did they first attempt to use for the lifting pad?

They initially used a type of woven fabric for the pad, but it was ineffective because it began to unravel and leak air, which would prevent proper inflation.

What material did they eventually choose for the pad, and why?

They opted for a plastic material that was solid and sealed better. This plastic, though difficult to glue, was much more suitable for containing the air without leaks.

What challenges did the team face while attempting the experiment?

The main challenges were finding a strong enough material for the pad, dealing with glue issues (the team had to redo the work after using the wrong glue), and managing the vacuum cleaner's weak power in a practical setting.

Why is the vacuum cleaner considered weak for this task?

The vacuum cleaner is rated at only 100W, which is not much power for lifting a car. However, the experiment works by spreading the weight of the car across a large area, reducing the pressure on any individual point.

How does the car’s weight get distributed to make this experiment work?

The car’s weight is distributed over 80,000 small areas (based on the dimensions of the car and the pad), meaning each individual point only has to bear 12.5 grams of weight, which is very manageable for the air pressure to handle.

What happens when the vacuum cleaner inflates the pad?

As the vacuum inflates the pad, the air pressure gradually starts to push the car upward. However, the inflation only exerts significant force when the pad starts to make contact with the car.

What did the team do to prevent the pad from bursting under the car?

To prevent damage from sharp edges or protrusions, they placed a protective EVA foam layer under the car, and they also used wood pieces to protect the pad from sharp components.

What real-world applications are mentioned for this kind of technology?

The concept of using pneumatic pads is employed by firefighters to lift heavy objects like trains or cars in rescue operations, as well as in construction and moving industries to lift heavy items safely.