Future Train Wreck: Mine or Modern Physics talk Next Thursday, Jan. 26

If you are in Cambridge, MA on Thursday, Jan. 26, you can see me live at MIT in room 3-270 from...

Holiday Physics Card, 2016

Just put them in the mail on December 24...It was a fun year of thinking, whether the idea is right...

Unified Mathematical Field Theory Talk

I gave a 15 minute talk at a local Americal Physical Society Meeting.  Here is the title and...

Holiday Card 2015

Here is my holiday card for 2015, a tradition of mine going back to 1990.  Enjoy.On the back...

 Doug Sweetser Trying to be a semi-pro amateur physicist (yes I accept special relativity is right!). I _had_ my own effort to unify gravity with other forces in Nature. It ran into quite a number of technically... Read More » Blogroll
$m \frac{d^2 R}{d t^2} = - G \frac{m M}{R^2} = - m \nabla \Phi$

# Upgrading Newton's Universal Gravity Law

Dec 20 2013 | comment(s)

[note: this blog, as written is insufficient. I will need to provide an action to clarify the nature of the proposal.]

# A Scalar Gravity Coupling Model That Bends Light

Nov 25 2013 | comment(s)

Classical gravity is not good enough.  As a first step, one must think about groups since that is the foundation of the Standard Model of physics.

# Rescinded: The Light Matter Proposal: A Big Picture View

Apr 17 2013 | comment(s)

I have decided to rescind this proposal.  Stars in a galaxy travel at one velocity, light at the speed c.  There is only one velocity involved in applying the product rule to the definition of a force as a change in momentum.  Note that is not a trivial application of the product rule either.  Newton's second law is invariant under Galilean transformation.  The dm/dt dR/dt is not invariant.

# Rescinded: The Light Matter Proposal: The Effect of Fusion on the Velocity Profile of a Disk Galaxy

Mar 31 2013 | comment(s)

I have decided to rescind this proposal.  Stars in a galaxy travel at one velocity, light at the speed c.  There is only one velocity involved in applying the product rule to the definition of a force as a change in momentum.  Note that is not a trivial application of the product rule either.  Newton's second law is invariant under Galilean transformation.  The dm/dt dR/dt is not invariant.

The Problem with Velocity Profiles

# Holiday Card, 2012

Dec 22 2012 | comment(s)

My 20+ year tradition of a physics inspired holiday card continues.  My friends like them, even if they are not understood :-)

Accompanying text:
Hello, hello:

# GEM Unification Rescinded, Officially

Oct 21 2012 | comment(s)

Claims on the Internet live on indefinitely.  I claimed to have found a testable candidate to unify gravity with the three other fundamental forces of Nature.  Thanks to sometimes trying efforts on this Science20 blog, I now have reasons why that claim was in error.  I consider it my responsibility to unambiguously rescind the claim.  If in the future, someone starts rehashing my proposal, at least I can provide a line of defense.

The word "retracted" was not used in the title since it is associated with fraud.  Editors will retract papers from journals when they determine the data was fictional, not factual.  Rescind is being used in the sense of repeal.  I am no longer trying to promote the GEM unification proposal because it is wrong.