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		<title>SyFyDesigns.com - Forum</title>
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			<title>E=mc²</title>
			<link>https://syfydesigns.com/forum/syfydesigns-science-and-fiction-forums/science/3837-e-mc%C2%B2</link>
			<pubDate>Sat, 14 Mar 2026 23:52:08 GMT</pubDate>
			<description>e=mc2 full formula 
 
Google AI search. it i replies answer 
 
Then tell it wrong 
 
correction: 
E = mc² assumes rest. 
Rest does not exist....</description>
			<content:encoded><![CDATA[<a href="https://filedata/fetch?id=3838&amp;d=1773532031" target="_blank"><a href="filedata/fetch?id=3838&amp;d=1773532031" class="bbcode-attachment"  ><img alt="Click image for larger version  Name:	4924.jpg Views:	0 Size:	58.5 KB ID:	3838" data-attachmentid="3838" data-align="none" data-size="medium" border="0" src="filedata/fetch?id=3838&amp;d=1773532031&amp;type=medium" data-fullsize-url="filedata/fetch?id=3838&amp;d=1773532031" data-thumb-url="filedata/fetch?id=3838&amp;d=1773532031&amp;type=thumb" data-title="Click on the image to see the original version" data-caption="" class="bbcode-attachment thumbnail js-lightbox bbcode-attachment--lightbox" /></a></a> e=mc2 full formula<br />
<br />
Google AI search. it i replies answer<br />
<br />
Then tell it wrong<br />
<br />
correction:<br />
E = mc² assumes rest.<br />
Rest does not exist.<br />
Therefore E = mc²<br />
is always incomplete.<br />
Always missing the<br />
momentum term.<br />
Always an approximation.<br />
Valid approximation<br />
for slow objects.<br />
Invalid at cosmic scales.<br />
Where everything moves fast.<br />
Where the momentum term<br />
is not negligible.<br />
Where the full equation:<br />
E² = (mc²)² + (pc)²<br />
is required.<br />
<br />
And at the limit:<br />
Pure energy (photon).<br />
m = 0.<br />
E = pc.<br />
Pure momentum.<br />
No mass.<br />
All motion.<br />
The other extreme<br />
from pure mass.<br />
<br />
BETWEEN THEM:<br />
Everything that exists.<br />
Some mass. Some motion.<br />
Always both.<br />
Never just one.<br />
Never just mass.<br />
Never just energy.<br />
Always the combination.<br />
Always moving.<br />
Always E² = (mc²)² + (pc)².<br />
<br />
<br />
It will agree physics&#8203;<br />
 ]]></content:encoded>
			<category domain="https://syfydesigns.com/forum/syfydesigns-science-and-fiction-forums/science">Science</category>
			<dc:creator>myke</dc:creator>
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			<title>Brown widow back porch AZ</title>
			<link>https://syfydesigns.com/forum/off-topic-community-forums/members-pets/3815-brown-widow-back-porch-az</link>
			<pubDate>Sat, 26 Jul 2025 22:23:56 GMT</pubDate>
			<description><![CDATA[Brown widow. Touch to view pinch to make bigger it's very clear. 
Extra photo I found online hopefully I left enough credit due to the person who...]]></description>
			<content:encoded><![CDATA[Brown widow. Touch to view pinch to make bigger it's very clear.<br />
Extra photo I found online hopefully I left enough credit due to the person who owns the image of all of the different widows<br />
Thank you <img src="https://syfydesigns.com/core/images/smilies/rolleyes.png" border="0" alt="" title="Roll Eyes (Sarcastic)" smilieid="7" class="inlineimg" /> <img src="https://syfydesigns.com/core/images/smilies/cool.png" border="0" alt="" title="Cool" smilieid="6" class="inlineimg" /> <img src="https://syfydesigns.com/core/images/smilies/smile.png" border="0" alt="" title="Smile" smilieid="1" class="inlineimg" />]]></content:encoded>
			<category domain="https://syfydesigns.com/forum/off-topic-community-forums/members-pets">Members Pets</category>
			<dc:creator>sister</dc:creator>
			<guid isPermaLink="true">https://syfydesigns.com/forum/off-topic-community-forums/members-pets/3815-brown-widow-back-porch-az</guid>
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