Could humans control physics laws?

Physics laws are supposed to be valid, here as usual, not to be modifiable by humans. The laws of physics speak equally to foes and friends alike, at any epoch. That is not changed in this...

06 July 2018 3,197 4 View

Discussion DELETED, see Preprints?

Question DELETED, see Preprints.

06 July 2018 5,563 4 View

Why is special and general relativity still denied today?

06 July 2018 2,407 91 View

Should Wikipedia be used only for careful, personal education?

References are important for context, in conveying meaning to others in daily conversations, and even more in research. But how trustworthy is the reference used? The reason iWikipedia has no...

05 June 2018 1,464 3 View

Do we have a physical model for the quantization of time?

There is no conclusive evidence that time is quantized. However, the recent difficulties with the Standard Model, as it nears 50 years, for example, with non-inclusion of gravity in a testable...

05 June 2018 7,593 33 View

Should college students learn about electromagnetism before mechanics?

Today, every college and university teach Newtonian Mechanics, first in engineering or physics, often concurrent with Calculus I. The question investigates whether it would be better to the...

05 June 2018 3,133 68 View

Do we need to abandon the Standard Model in physics?

In Nature, nothing is a particle -- as we go in, we do not reach a particle, we reach quantum waves. E0 = mc2 is a well-known expression of that. But reality is observer-dependent, in QM and...

04 May 2018 8,868 93 View

Do for-pay scholarly journals contribute significantly enough to the papers they publish?

Open access supporters, such as many users in RG, see the high cost of many academic journals, whose subscriptions often run into thousands of dollars per year, as unsustainable for cash-strapped...

02 March 2018 8,995 4 View

How many physics articles do you see that were published in top journals, that use 3D vector calculus or Newton's laws, in last 10 years?

3D Gibbs vector calculus may live on in math, but as a physics tool it has perhaps too many defficencies to go beyond freshman level in college, and seems less and less used. In research, the...

02 March 2018 6,396 8 View

Can the gun problem in the world and USA be solved? How?

Data document the often confounding way that the gun control and gun ownership problems, and resulting massive deaths, occur today in the US (and world), exemplified in [1]. However, we take the...

09 October 2017 9,514 5 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

Discrete Phase model (DPM) particle break-up has particle size limits during particle tracking?

Hello, I am currently working on simulating water droplet partciles in a closed room. When I use uniform particles, without "particle break-up", I can carry out the simulation without any problem....

02 March 2021 3,053 2 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 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

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

Zno nano particles colour changed from white to grey in process of calcination any suggestions?

In the formation of Zno nano particles process, after drying at 120 degree C, my zno nano particles are completely white but when i calcine it for 450 degree C it converts into grey colour. i...

26 February 2021 2,435 4 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View

Questio regarding micro/nano particles fabrication ?

I will start to fabricate micro/nanoparticles for growth factor release and I check out a procedure quite nice, however, it is lacking some details and since I don't have much knowledge doing this...

20 February 2021 199 2 View