1

Physics, Astronomy & Cosmology / Does quantum bayesianism have anything useful to say?

« on: 01/12/2019 17:26:35 »

See https://en.m.wikipedia.org/wiki/Quantum_Bayesianism
Does this clear up the mysticism of many-worlds and other such interpretations?

2

Physics, Astronomy & Cosmology / Can we detect acceleration in free fall?

« on: 19/11/2019 19:11:44 »

Well this is not the question you might think it is. If a spacecraft is falling freely towards a gravitating body, and then starts accelerating towards the body, would an accelerometer show the acceleration?

I have not seen anything about this online. I would say it would. Is there any observational evidence anyone can point to? Have you tried this personally?

3

Physics, Astronomy & Cosmology / Where can I find a full list of neutral particles?

« on: 10/11/2019 00:44:14 »

Apart from the neutron is there a list of the other known neutral particles?

4

Physics, Astronomy & Cosmology / Does the Higgs potential relate to a standing wave

« on: 10/08/2019 00:50:13 »

Is this the wrong way to look at this?

5

General Science / Does the earth emit EM radiation due to its acceleration around the sun?

« on: 08/08/2019 12:49:32 »

The earth is in free fall around the sun but at the same time accelerating. Einstein said we shouldn't be able to distinguish free fall from inertial motion. So could we detect the emission of electromagnetic radiation from the earth accelerating through the sun's EM field or not?

6

Physics, Astronomy & Cosmology / Could the big bang have produced Planck mass sized particles?

« on: 04/08/2019 17:04:33 »

If this was possible could black holes have formed very early in the process?

7

Physics, Astronomy & Cosmology / How well do laymen understand Bell's theorem?

« on: 03/08/2019 12:20:17 »

I just watched this video

. It may well help others to understand better. It is a difficult concept to grasp. Let me know if it helped.

8

Physics, Astronomy & Cosmology / Is the shift in the wavelength of light cancelled during free fall?

« on: 07/07/2019 20:21:50 »

Do the shifts cancel for a freely falling object? Has an experiment been done?

9

Physics, Astronomy & Cosmology / Can entangled photons unlock a black hole?

« on: 24/06/2019 19:30:02 »

OK, a bit of a tabloid headline title. On to the crux. If we continually entangled photon pairs, sending one into a black hole and the other to a detector, would we be solving the information paradox? Or just wasting our time?

10

Physics, Astronomy & Cosmology / Can we derive a conic potential

« on: 23/06/2019 19:10:52 »

If the gravitational field were not inverse square in nature, but had the same potential at every point, would this plot as a cone? I have been thinking about light cones. Which is why I am asking such a strange question.

11

Physics, Astronomy & Cosmology / Where were the electrons before the big bang?

« on: 22/06/2019 14:24:26 »

I read a lot about quark gluon plasma as a source of the big bang but never about what state electrons were in at the big bang event. Can someone enlighten me?

Please see: https://en.m.wikipedia.org/wiki/Leptogenesis_(physics)

12

Just Chat! / Should all the lying warmongers be locked away?

« on: 19/06/2019 07:04:57 »

John Bolton and Mike Pompeo are about to lie America into another illegal war. This time with Iran. Should these war criminals be locked away for everyone else's safety?

13

Physics, Astronomy & Cosmology / Can tunneling work with gravitational potential wells?

« on: 15/06/2019 10:28:14 »

I know this sounds crazy but a post by @chiralSPO got me thinking. Scale matters but is it theoretically possible to tunnel from one gravitational potential well to another? I have no idea on what the answer might be or if it is even sensible to ask this question. So fire away.

14

Physics, Astronomy & Cosmology / Is the expansion of the universe inertial?

« on: 08/06/2019 23:04:20 »

A gravitational field makes free fall equivalent to an inertial frame. Can the same principle be applied to whatever drives the accelerated expansion of the universe?

15

Physics, Astronomy & Cosmology / Does a photon self propagate due to the interactions of the electric and magnetic fields?

« on: 14/05/2019 18:36:21 »

It might be useful to try to answer this question. Does a photon self propagate due to the interactions of the electric and magnetic fields? Taking into consideration the wavelike nature of the photon.

16

Physics, Astronomy & Cosmology / Is earth moving at close to the speed of light?

« on: 24/04/2019 11:11:27 »

Since motion is relative then in some frames of reference we can be considered to be moving close to the speed of light. Are we actually moving at close to the speed of light?

17

Physics, Astronomy & Cosmology / Would dark energy cause negative time dilation?

« on: 18/04/2019 18:32:44 »

If gravity causes time dilation would dark energy cause the opposite effect?

18

The Environment / Are insect species dying out?

« on: 16/02/2019 08:27:03 »

Studies appear to show a worrying decline in many insect species. Is this a far more existential threat than any change in climate?
https://www.google.com/amp/s/relay.nationalgeographic.com/proxy/distribution/public/amp/animals/2019/02/why-insect-populations-are-plummeting-and-why-it-matters

19

Physics, Astronomy & Cosmology / What field gives rise to the Van Der Waals forces?

« on: 16/02/2019 07:27:49 »

Since forces can be associated with fields I am wondering what this one is.

20

Physics, Astronomy & Cosmology / Can two protons differ in mass?

« on: 17/01/2019 21:52:24 »

All external environmental conditions being equal can there be a difference in mass between two protons? I am thinking in terms of small differences in gluon binding energy because of indeterminacy.