@design_RG It's a great shame that just because of the so-called "anonymity" of the Internet there are those people who choose to be obnoxious. The very same people wouldn't dare say "boo" to a goose if face to face!
Just found this article, an excellent read!
"Over the past few years, Mastodon has become the model for a friendlier kind of social network, promising to keep out the hateful or ugly content that proliferates on larger and more centralized networks. Journalists hailed it as “Twitter without Nazis” and for years, it’s generally lived up to that promise. But last week, the social network Gab migrated to Mastodon — and Mastodon’s admins have been forced to deal with the internet’s Nazi problem head-on."
If you are a lay person and dont understand physics but want to in a fun easy way without math, check this out. Feynman was a wonderful mind and great at explanations:
@design_RG Against people, though there is a bot for those who just want computer. http://www.dailygammon.com/
Backgammon is a great game, thoroughly enjoy it even when luck is against me. Its a great mix of luck and skill so I prefer it to chess. If you fancy a game, join up and we can arrange some games.
Ouch! #backgammon can be a cruel game. My opponent (blue), wins by gammon, and gets 4 points having rolled double 5, double 3, double 6!
Life at #dailygammon
NOTE: for those who cant read the below equations (they aren't rendered) you can follow this link to see: http://mathb.in/38381
Here you go a full derivation from the math equations you started with to the one I provided you several times...
axioms (given by you, agreed by physicist):
\[E = {m}_{rel} \cdot {C}^{2}\]
\[{E}^{2} = {p}^{2} \cdot {C}^{2} + {{m}_{rest}}^{2} \cdot {C}^{4}\]
De Broglie's Equation for the momentum of a photon:
\[p = \frac{h}{\lambda}\]
Formula to convert wavelength \(\lambda\) into a frequency:
\[\lambda = \frac{C}{f}\]
Simplify given axioms:
\[{({m}_{rel} \cdot {C}^{2})}^{2} = {p}^{2} \cdot {C}^{2} + {0}^{2} \cdot {C}^{4}\]
\[{{m}_{rel}}^{2} \cdot {C}^{4} = {p}^{2} \cdot {C}^{2}\]
\[{{m}_{rel}}^{2} = \frac{{p}^{2} \cdot {C}^{2}}{{C}^{4}}\]
\[{{m}_{rel}}^{2} = \frac{{p}^{2}}{{C}^{2}}\]
\[{m}_{rel} = \sqrt{\frac{{p}^{2}}{{C}^{2}}}\]
then use de broglie's equation for the momentum...
\[{m}_{rel} = \sqrt{\frac{{(\frac{h}{\lambda})}^{2}}{{C}^{2}}}\]
\[{m}_{rel} = \sqrt{\frac{\frac{{h}^{2}}{{\lambda}^{2}}}{{C}^{2}}}\]
\[{m}_{rel} = \sqrt{\frac{{h}^{2}}{{C}^{2} \cdot {\lambda}^{2}}}\]
Now convert wavelength to frequency...
\[{m}_{rel} = \sqrt{\frac{{h}^{2}}{{C}^{2} \cdot {(\frac{C}{f})}^{2}}}\]
\[{m}_{rel} = \sqrt{\frac{{h}^{2}}{{C}^{2} \cdot \frac{C^2}{f^2}}}\]
\[{m}_{rel} = \sqrt{\frac{{h}^{2}}{\frac{C^4}{f^2}}}\]
\[{m}_{rel} = \sqrt{{h}^{2} \cdot \frac{f^2}{C^4}}\]
\[{m}_{rel} = \sqrt{\frac{{h}^{2} \cdot f^2}{C^4}}\]
and bam you arrive at the equation for the relativistic mass of a photon.
\[{m}_{rel} = \frac{h \cdot f}{c^2} \]
@design_RG LOL!
@design_RG Good stuff.
@design_RG Yes, my browser is set to strict. If any unwanted stuff does get thru I just right-click on the annoying element and select "block element" in the context menu.
@design_RG Apologises, I'd forgotten about all the ad nonsense distractions. I use ublock in my browser that gets rid of it. He does write some good articles though ...
Why cosmology is (probably) not behind the curve | astrobites
https://astrobites.org/2019/11/28/why-cosmology-is-probably-not-behind-the-curve/
A fifth force of nature?
More work is required ...
This Is Why The 'X17' Particle And A New, Fifth Force Probably Don't Exist
https://www.forbes.com/sites/startswithabang/2019/11/26/this-is-why-the-x17-particle-and-a-new-fifth-force-probably-dont-exist/
Is an anomaly in the CMB a statistical fluke or evidence of a curved universe?
What Shape Is the Universe — Closed or Flat? | Quanta Magazine
https://www.quantamagazine.org/what-shape-is-the-universe-closed-or-flat-20191104/
Cosmic Triangles Open a Window to the Origin of Time
https://www.quantamagazine.org/the-origin-of-time-bootstrapped-from-fundamental-symmetries-20191029/
What do simulations tell us about the shape (& mass) of our galaxy?
A new instrument to help understand universe expansion and dark energy - DESI (Dark Energy Spectroscopic Instrument) ...
Our sun is "at least" a third generation star. Interesting article by Ethan Siegel ...
https://www.forbes.com/sites/startswithabang/2019/10/26/ask-ethan-how-many-generations-of-stars-formed-before-our-sun-did/
Irving Finkel is just brilliant! I could listen to him all day ...
Here he is demonstrating the excellent game of '20 squares' - The Royal Game of Ur. Similar to #backgammon
https://www.youtube.com/watch?v=WZskjLq040I