chemistry

Nano guitar

Nano guitar is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Nano guitar rather than just read about it. In short: The nano guitar is a microscopically small carved guitar. It was developed by Dustin W.

Key takeaways

Nano guitar belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Nano guitar to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Nano guitar from memory before moving on to harder problems.

Reference excerpt

The nano guitar is a microscopically small carved guitar. It was developed by Dustin W. Carr in 1997, under the direction of Professor Harold G. Craighead, in the Cornell Nanofabrication Facility. The idea came about as a fun way to illustrate nanotechnology, and captured popular attention. It is disputed as to whether the nano guitar should be classified as a guitar, but it is the common opinion that it is in fact a guitar.

Explanation Nanotechnology miniaturizes normal objects, in this case, a guitar. It can be used to create tiny cameras, scales, and covert listening devices. An example of this is smartdust, which can be either a camera or a listening device smaller than a grain of sand. A nanometer is one-billionth of a meter. For comparison, a human hair is about 200,000 nanometers thick. The nano guitar is about as long as one-twentieth of the diameter of a human hair, 10 micrometers or 10,000 nanometers long. Each of the six 'strings' is 50 nanometers wide. The entire guitar is the size of an average red blood cell. The guitar is carved from a grain of crystalline silicon by scanning a laser over a film called a 'resist'. This technique is known as electron-beam lithography. The guitar strings can be made to vibrate by tiny lasers using an atomic force microscope, in the same way, a guitar player might use a plectrum. The strings vibrate at around 40 000 000 Hz, roughly 15 octaves higher than a normal guitar, which can typically reach up to 1318.510 Hz. Even if its sound were amplified, it could not be detected by the human ear.

Implications The nano guitar illustrates inaudible technology that is not meant for musical entertainment. The application of frequencies generated by nano-objects is called sonification. Such objects can represent numerical data and provide support for information processing activities of many different kinds that produce synthetic non-verbal sounds. Since the manufacture of the nano-guitar, researchers in the lab headed by Dr. Craighead have built even tinier devices. One thought is that they may be useful as tiny scales to measure tinier particles, such as bacteria, which may aid in diagnosis.

Worked examples

Example 1 — a first encounter with Nano guitar

Start with the simplest possible case. Write down what Nano guitar claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Nano guitar before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Nano guitar ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Nano guitar

In research: Nano guitar appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Nano guitar in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Nano guitar is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1997 musical instruments, Individual guitars, Molecular machines, so understanding it makes those chapters shorter.
In everyday life: Look for Nano guitar outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Nano guitar in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Nano guitar means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Nano guitar out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Nano guitar in simple terms?

The nano guitar is a microscopically small carved guitar. It was developed by Dustin W.

Why does Nano guitar matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Nano guitar?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Nano guitar.