# Strings vs Blocks: Dimensions & Oscillating Volumes

• Pjpic
In summary, the conversation discusses the topic of dimensions and why strings only have one dimension while other objects may have more. The reason for this lies in the mathematics involved and the complexity that arises with more dimensions. While theories with more dimensions have been devised, it is not yet known how to consistently quantize them. String theorists still use these objects in their work, mostly as classical objects.
Pjpic
Why do strings only have one dimension (or maybe branes have 2 dimensions)? Why aren't oscillating volumes (like a cube) used?

Symmetry and minimization of energy.

Your question is a good one, and one I think any intelligent person should ask themselves at some point. It's actually somewhat equivalent to saying "why isn't the Sun a cube, or hexahedron?"

Pjpic said:
Why do strings only have one dimension (or maybe branes have 2 dimensions)? Why aren't oscillating volumes (like a cube) used?
If strings are replaced with objects extended in more dimensions, then ultraviolate divergences cannot longer be removed (at least not perturbatively). This happens only for extension in 1 dimension.

I agree it is a good question and the answer lies in mathematics.

There is no reason why theories involving more dimensions cannot be devised (and indeed they have already) but the mathematics involved becomes increasing more complex as you add more dimensions.

Dmitry67 said:
It is still not known how to quantize them consistently.

Demystifier said:
If strings are replaced with objects extended in more dimensions, then ultraviolate divergences cannot longer be removed (at least not perturbatively). This happens only for extension in 1 dimension.

I don't know what it means, but thanks for the answer. So, string theory says that objects can only have one dimension due to a fundamental property of reality?

Demystifier said:
It is still not known how to quantize them consistently.

Hmm, but string theorists use them regularly anyway don't they?

Coin said:
Hmm, but string theorists use them regularly anyway don't they?
Yes. They mostly use them as classical objects.

Demystifier said:
Yes. They mostly use them as classical objects.
Very interesting, thanks.

## 1. What is the difference between strings and blocks in terms of dimensions?

Strings and blocks are both objects that can vibrate and produce sound. However, strings are typically one-dimensional objects, meaning they only vibrate in one direction, while blocks are three-dimensional objects that can vibrate in multiple directions.

## 2. How do the dimensions of strings and blocks affect their sound production?

The dimensions of strings and blocks play a crucial role in the sound they produce. The length, thickness, and tension of a string can affect its frequency and pitch, while the shape and size of a block can affect the quality and volume of its sound.

## 3. What is the concept of oscillating volumes in strings and blocks?

Oscillating volumes refer to the changes in amplitude (or loudness) of a vibrating object. In strings, the amplitude can be controlled by the musician through techniques like plucking or bowing, while in blocks, the amplitude can be affected by factors such as the material it is made of and the surface it is placed on.

## 4. How do strings and blocks produce sound through vibration?

In both strings and blocks, sound is produced through vibration. When a string is plucked or a block is struck, it causes the object to vibrate at a certain frequency, which in turn creates sound waves that travel through the air and reach our ears. The specific frequency and shape of the vibration determine the pitch and quality of the sound produced.

## 5. Can strings and blocks be used together in music production?

Yes, strings and blocks can be used together in music production to create a variety of sounds and textures. In fact, many musical instruments, such as pianos and guitars, use both strings and blocks to produce their unique sounds. Additionally, electronic music producers often incorporate both string and block samples and synthesizers in their compositions.

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