650 reputation
618
bio website
location United Kingdom
age
visits member for 3 years, 4 months
seen 1 hour ago

Manual worker. Live in England. Formal scientific education "peaked" many years ago when I failed maths and chemistry A-level and scraped a bare pass in physics. Still enjoy pottering about in maths and physics.


2d
revised Geodesic deviation equation - why does the ordinary second derivative give the correct answer?
added 159 characters in body
2d
revised Geodesic deviation equation - why does the ordinary second derivative give the correct answer?
added 335 characters in body
Sep
4
revised Geodesic deviation on a unit sphere
added 841 characters in body; edited title
Sep
3
revised Geodesic deviation on a unit sphere
I forgot to sum over the indices when calculating the absolute derivative, which I've now done.
Aug
27
revised Textbook disagreement on geodesic deviation on a 2-sphere
added 776 characters in body
Aug
27
revised Textbook disagreement on geodesic deviation on a 2-sphere
edited tags
Sep
18
revised Getting started general relativity
additional information
Apr
2
revised Very basic question about empty universe
added 92 characters in body
Nov
12
revised Inertial frames of reference
Had a rethink about what I was trying to ask.
Sep
15
revised Trying to understand the weak gravitational field metric (1)
edited title
Sep
13
revised Trying to understand the weak gravitational field metric (2)
added 3 characters in body
Sep
12
revised Trying to understand the weak gravitational field metric (2)
added 2 characters in body