Physics related research discussions | Contact experts in Physics to get answers
1,692 views 1,146 posts
Questions related to Physics
Como pode ser visto no arquivo em anexo, estou planejando a criação de um novo tipo de bateria que não usa energia química. Em vez disso, ela usa as propriedades de um indutor em um circuito sem...
08 August 2019 4,317 3 View
Hello Is there a certain value in m2/g for a nanomaterial to be considered of high surface area and thus good adsorption performance ?
07 July 2019 8,846 7 View
Hi, For a project I'm working on, I require an X band varactor, with a junction capacitance of the order of 0.1pF. I am struggling to find a varactor (surface mounted, SC-79 packaging) with...
07 July 2019 5,583 6 View
In general, is friction useful or not?
07 July 2019 2,966 9 View
Transverse electromagnetic wave (TEM mode) with an angular frequency ω and a power P is propagating in the z-direction along a coaxial transmission line (P is the time-averaged power flow, to be...
06 June 2019 4,999 1 View
I want to create a 3D hologram in mid air . can anyone tell me how i can create this using any technique?
06 June 2019 6,471 10 View
What does it actually mean to exist? How is it different from non-existence? How can we be sure if something exists or does not exist? I have made a case that these questions are more fundamental...
26 May 2019 9,097 7 View
If you have not studied your current science, what would you like to study?
03 March 2019 5,331 56 View
Hi, I need to find how object is vibrating after collision with another object. Example: Object A is standing on the ground. Object B (could be a ball) is dropped onto object A from height H....
03 March 2019 1,505 6 View
Hello everyone, I am currently finishing my master's degree thesis in which I propose a methodology for knot placement in B-spline regression. I've already tested my algorithm on a lot of...
03 March 2019 831 3 View
Generally when a fluid is flowing inside a tube under forced convection under laminar flow conditions, constant heat flux and constant wall temperature conditions are demonstrated. In coming to...
14 February 2019 2,799 45 View
From 10K to 300K
02 February 2019 8,068 2 View
I think I was supposed to think about this question 10 years ago but for some reason I did not, I don't deal with physics a lot but this is so interesting for me as I am going deeper in structural...
02 February 2019 2,071 7 View
How does even Majorana Fermion exist ? Why any fermion can be written as a combination of two Majorana fermions? Is there any physical meaning in it? Why Majorana fermion can be used for...
27 January 2019 3,112 3 View
Is it possible to get boiling water by stirring with a spoon? Would be interesting to know for my current danger assessment studies.
01 January 2019 6,748 1 View
The universal/molar/ideal gas constant R is given by R=PV/nT; this however, on an average, is considered true for gases (H2, O2, N2 are excluded). Involving R in chemical expressions dealing with...
01 January 2019 4,142 12 View
There are many definitions about plasma temperature, like electron temperature, ionization temperature, excitation temperature, atomic temperature, ionic temperature... What do they mean? I am...
01 January 2019 5,329 2 View
01 January 2019 8,686 3 View
Is there any body which is at rest but not in equilibrium? There are two conditions for a body to be in equilibrium: (i) Sum of forces acting on body= 0 (ii) Resultant torque = 0 If a body is in...
01 January 2019 2,190 15 View
01 January 2019 5,719 20 View
How many colors can the human eye distinguish?
12 December 2018 9,084 26 View
"Once upon a time, we soared into the solar system for a few years, then we hurried back. Why? What happened? What was Apollo really about?" - Carl Sagan. I researched this question. Funding,...
11 November 2018 4,887 24 View
What are stages of Applied Physics Letters once you have submitted the article. And, also, how many days usually each step take?
11 November 2018 6,617 5 View
I have been looking for studies done that compare the congener retention differences between differently shaped glassware. It is "known" that bulb shaped nosing glassware "concentrate" congeners...
11 November 2018 3,216 0 View