Kann man Glas zersingen? Explosion durch Sound in Slow Motion | Phil's Physics

Summary

In this video, the myth of breaking a glass by singing at its resonant frequency is put to the test. The host teams up with an expert to conduct the experiment in a lab, using precise equipment to measure the glass's resonant frequency and amplify sound to try and shatter it. While it's challenging to maintain the exact frequency needed for the glass to break, the experiment succeeds, proving that the myth isn't just a myth. The video highlights the importance of the right tools and techniques in achieving this impressive feat.

Takeaways

• 😀 The internet myth that singing can break a glass is tested in the video.
• 😀 The experiment is conducted in a lab with professional equipment for accurate results.
• 😀 A large glass is used to ensure the glass breaking effect is clearly visible.
• 😀 Resonance frequency is key to breaking the glass, and this can be measured accurately using a frequency app on a smartphone.
• 😀 Tuning forks are used to demonstrate the principle of resonance in sound waves.
• 😀 The experiment confirms that breaking a glass with sound is possible but requires the exact frequency and a high volume.
• 😀 Human voices struggle to maintain the precise frequency needed to break a glass due to the difficulty of holding the sound steady at such a high volume.
• 😀 Ear protection is necessary due to the loud sounds generated during the experiment, and the host mentions experiencing temporary tinnitus.
• 😀 While rare, some people have been able to break glass with their voices, but it is very difficult to replicate consistently.
• 😀 The shattered glass from the experiment will not be given away as a prize, despite audience requests.
• 😀 The video humorously concludes with the possibility of other giveaways in future videos, though not the glass shards.

Q & A

What is the main focus of the video?

The video focuses on testing the internet myth that a glass can be shattered by singing at its resonant frequency, using scientific tools to conduct the experiment accurately.

What scientific principle is used to try to break the glass?

The principle of resonance is used, where the glass is made to vibrate at its natural frequency using sound waves.

Why did they choose a larger glass for the experiment?

A larger glass was chosen because it makes it easier for viewers to see the process of the glass vibrating and breaking when exposed to the resonant frequency.

What tool did they use to measure the frequency of the glass?

They used a smartphone app, specifically a tuning app, to measure the frequency of the sound emitted by the glass.

How does resonance work in this context?

Resonance occurs when the sound generated matches the natural frequency of the glass, causing it to vibrate intensely. If the vibration is strong enough, it can cause the glass to break.

What challenge does the human voice face when attempting to shatter the glass?

The main challenge is that it is extremely difficult for a person to hold a precise, high-intensity tone long enough to cause the glass to vibrate at its resonant frequency.

How did they ensure the glass reached its resonant frequency?

They used a frequency generator and precise equipment to generate and maintain the exact frequency required to resonate with the glass.

What precautions were taken during the experiment?

The team wore ear protection to shield against the loud sound and any potential damage from the glass shattering, and they advised others in the vicinity to wear glasses for safety.

Did the myth about shattering glass by singing prove to be true?

While the myth is based on truth in theory, it is extremely difficult for a person to achieve the required resonance through singing alone. In this case, the experiment was successful due to the use of the right equipment.

What was the outcome of the experiment?

The glass was successfully shattered using the resonant frequency, confirming that the phenomenon is possible, but only under controlled conditions with precise tools.