As Max Planck found the possiblity to divide the atomkernel of uranium could he differentiate energy with and without mass?

Max Planck is said to be the first who understood the possibility to divide a uranium kernel. Is the power of the first atom bomb of Manhatten Project based on massless energy only?

08 September 2016 7,178 0 View

Is a spin of an electron one single one or is it more complex?

Is it the momentum of an electron around the atom-kernel or is it a spin around the own axis of an electron as particle?

08 September 2016 4,009 0 View

Is Energy of photon realy quantized?

If I take the formula for Electromagnetic Energy of a photon (E= hf) h is a (Planck) constant value and f can be a common positiv number. Is f a real number or an integer? Quantisation of photon...

07 August 2016 6,387 0 View

Is Lorentz-Force the same as Electromagnetic Force?

07 August 2016 5,208 9 View

Is a bosonic field possible?

07 August 2016 894 0 View

Is Information Content and Storage Amount of 1 bit the same?

07 August 2016 4,218 0 View

Where and why starts or appears rotation (= spin) of Photon or Electron?

07 August 2016 1,445 0 View

What is a "Quantum Number"?

06 July 2016 8,360 2 View

Why mass is existing? How is the relation to weight?

05 June 2016 4,492 76 View

Can Artificial Intelligence ever reach Human Intelligence?

05 June 2016 7,766 1 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

No streamlines present in a small region inside a flow. This means exactly what?

No streamlines present means whether the flow is getting obstructed there and the velocity inside the region is zero? Or else, the fluid is trapped inside that region with a nonzero velocity?...

22 February 2021 5,249 10 View