Register
Help
Remember Me?
What's New?
Forum
FAQ
Calendar
Community
Groups
Albums
Member List
Forum Actions
Mark Forums Read
Quick Links
View Site Leaders
Advanced Search
Member List
SRH
If this is your first visit, be sure to check out the
FAQ
by clicking the link above. You may have to
register
before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
SRH
Established Member
Find latest posts
Find latest started threads
Mini Statistics
Join Date
2012-Jul-05
Last Activity
2019-Feb-09
12:42 AM
More
10
Friends
The Physics Detective
The Tunneller
ToSeek
utesfan100
Colin Robinson
bane357
Recent Visitors
The last 10 visitor(s) to this page were:
bane357
,
DaveC426913
,
Jerry
,
LookingSkyward
,
Lucretius
,
primummobile
,
Reality Check
,
seotoppewdie
,
slang
,
space collectibles
This page has had
10,205
visits
Tab Content
SRH's Activity
About Me
Friends
Tab Content
All
SRH
Friends
Photos
New Activity (
)
Please reload this page to view the 200+ new activity items that have been created.
Older Activity
2019-Mar-09,
01:40 PM
Copernicus
replied to a thread
Thought experiment about stars
in
Space/Astronomy Questions and Answers
A little hard to understand. I'm wondering if something is moving, in relationship to something else, simply due to the expansion of space, do the...
see more
18 replies | 507 view(s)
2019-Mar-06,
06:25 PM
Copernicus
replied to a thread
Thought experiment about stars
in
Space/Astronomy Questions and Answers
This is more what I was asking about. If one does see time dilation, but not following the Lorentz factor, is it known what this relationship is?
see more
18 replies | 507 view(s)
2019-Mar-06,
01:22 AM
Copernicus
replied to a thread
Thought experiment about stars
in
Space/Astronomy Questions and Answers
I guess I am asking about relativistic vs expansion of the universe affects. According to current theory the universe is larger than the Hubble...
see more
18 replies | 507 view(s)
2019-Mar-05,
08:32 PM
Copernicus
started a thread
Thought experiment about stars
in
Space/Astronomy Questions and Answers
If one has two stars of certain rest mass, that is equal, but one is not moving vs one that is moving at lets say 3^.5/2 the speed of light the one...
see more
18 replies | 507 view(s)
2019-Mar-04,
01:11 PM
Copernicus
replied to a thread
WWF Study on animal declines
in
Science and Technology
I did find a new study on animal extinction. https://phys.org/news/2019-03-alien-species-primary-global-extinctions.html Biggest causes of animal...
see more
37 replies | 2182 view(s)
2019-Mar-01,
01:59 PM
Copernicus
replied to a thread
red-shifting energy and momentum
in
Space/Astronomy Questions and Answers
Thank you.
see more
4 replies | 137 view(s)
2019-Mar-01,
01:58 PM
Copernicus
replied to a thread
red-shifting energy and momentum
in
Space/Astronomy Questions and Answers
Thank you
see more
4 replies | 137 view(s)
2019-Feb-28,
03:22 PM
Copernicus
started a thread
red-shifting energy and momentum
in
Space/Astronomy Questions and Answers
I was wondering if red-shifting is from momentum or energy?
see more
4 replies | 137 view(s)
2019-Feb-27,
10:59 AM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
Thanks
see more
15 replies | 401 view(s)
2019-Feb-27,
10:51 AM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
I wasn't wasting other peoples time. I couldn't figure out how to do it and then after some discussion I figured it out. I was having a hard time...
see more
15 replies | 401 view(s)
2019-Feb-27,
01:59 AM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
I found a different way to do what I wanted. \int_1^{100000} ( x^2 - (x-1)^2)/(1-(x/100000)^2)^{.5} dx
see more
15 replies | 401 view(s)
2019-Feb-26,
11:53 PM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
I'm not sure if this is the equation I want. Wolframalpha times out. \int_{\delta}^{1}\frac{x^2-(x-\delta)^2}{(1-x^2)^{0.5}}dx
see more
15 replies | 401 view(s)
2019-Feb-26,
11:45 PM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
Right, I don't understand why it goes to zero.
see more
15 replies | 401 view(s)
2019-Feb-26,
07:26 PM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
If anyone is interested I can send a copy of an excel file to an email. Just send me a message.
see more
15 replies | 401 view(s)
2019-Feb-26,
07:23 PM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
Thanks Strange, it is not what I am asking.
see more
15 replies | 401 view(s)
2019-Feb-26,
05:00 PM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
Lets say I have the equation x^2-(x-\delta)^2 I want this equation to be integrated from \delta to 1 but let delta be some small infinitesimal....
see more
15 replies | 401 view(s)
2019-Feb-26,
02:40 PM
Copernicus
replied to a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
Thanks, that is why it is an infinitesimal less than 1. So lets say it is 1 part in a billion less than 1 just to keep it less than infinity.
see more
15 replies | 401 view(s)
2019-Feb-26,
12:51 PM
Copernicus
started a thread
help integrating an equation
in
Space/Astronomy Questions and Answers
I would like to integrate an equation but I cannot figure it out. I would like to take the equation 1/(1-x^2)^.5=y and integrate it from 0 to 1 at...
see more
15 replies | 401 view(s)
More Activity
No More Results
No Recent Activity
About SRH
Basic Information
Statistics
Total Posts
Total Posts
305
Posts Per Day
0.12
General Information
Last Activity
2019-Feb-09
12:42 AM
Join Date
2012-Jul-05
Referrals
1
10
Friends
bane357
Member
Colin Robinson
Established Member
Copernicus
Established Member
Jerry
Order of Kilopi
pogono
Established Member
Tempeststrawberry
Member
The Physics Detective
Banned
The Tunneller
Member
ToSeek
Vulcan Administrator
utesfan100
Established Member
Showing Friends 1 to 10 of 10