Thanks bill_k
There are periodic tables which show that every atom (nucleus to be more precise) of every element has its own resonant frequency.
I think I am correct in saying that these nucleus will absorb energy which has a frequency matching its fundamental or natural frequency. I am aware...
I have a question which I would like to know the answer to, I posted it before but don't think I was understood correctly, hopefully I can make myself clearer this time.
Every physical object in this universe has a natural or resonant frequency from an atom to a planet.
Attached is an image of...
What is the relationship between harmonics and wave amplitude in a resonant object?
Lets say we have an object which has a natural resonant frequency of 50hz. we connect that object to a signal generator set at 50hz and note the amplitude of the oscillations the object. Next we go up one...
The diagram accompanying this post shows a cylindrical column bored at right angles to a flat surface. Let’s say the material is a block of brass with a hole drilled in it. The arrow represents a fast moving stream of compressed air. As the air passes over the top of the column a high pitched...
No, I was answering your question, you asked why I thought ionizing an atom would reduce its energy. If you are removing matter from an atom are you not reducing its energy according to E=MC2 ??
As for my thoughts to why this may cool a gas I have noticed that atoms/molecules tend to eject...
A plasma would be created if you used a massive amount of electrical energy, considering the fact that we are dealing with gas at pressure. I however was just thinking about the production of ionised gas as opposed to a plasma state.
I was thinking of its application to cool a jet of gas. Here is a quick sketch. Pressurised gas flows through a nozzle which has sharp points attached to a EHT. The electrons are ripped from the gas thus ionising it as it passes over the grid. Will the temperature of the gas be reduced?
If you use high voltage to rip electrons away from gas molecules thus forming ions will this have a cooling effect on the gas? Removing electrons from an atom must bring it to a lower energy state, will that lower energy state manifest itself as a lowering in temperature?
Could you use this...
A high voltage capacitor is charged and then the two leads are shorted together generating a spark, simultaneously a nearby radio crackles. This shows us that when the spark was generated radio waves was also generated. These primitive radio waves are sometimes called hertzian waves. A bolt of...
Thanks f95toli, I am looking to machine cavitys to resonate at ultrasonic frequencies. The cavitys will therefore be relatively short in length, this is why I was thinking about the radius of the cavitys. When a cavity is relatively short I'm thinking that sort of resonance I mentioned before...
Consider the following experiment:
An empty paint can (capped cylinder) is half filled with water and positioned over a tap so that the tap is over the exact centre of the can.
The tap is now finely adjusted so that a single drop of water drips from the tap. The water drop hits the surface...
I'm looking for a formula to calculate the resonant frequency of a capped cylinder. I have found a link to a formula but was surprised to see that cylinder radius is not taken into account when making the calculation.
It was my understanding that the larger the radius of a cylinder the lower...
Is it as simple as that...haha lol, I knew 2^3 was 8 but I had assumed I was looking for something more complex, funny when you look for the complex you miss the simple.
Would this only work for spheres then?