https://enciklopedija.cc/index.php?action=history&feed=atom&title=Planckova_masa 2026-07-17T01:42:14Z Povijest promjena ove stranice na wikiju MediaWiki 1.42.3 https://enciklopedija.cc/index.php?title=Planckova_masa&diff=444020&oldid=prev 2022-03-23T19:40:05Z

<p>bnz</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="hr"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←Starija inačica</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Inačica od 23. ožujak 2022. u 19:40</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Redak 1:</td> <td colspan="2" class="diff-lineno">Redak 1:</td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">&lt;!--'''Planckova masa'''--&gt;'''</del>Planckova masa''', je [[Fizikalne konstante|fizikalna konstanta]], sa oznakom ''m&lt;sub&gt;P&lt;/sub&gt;'', a to je jedinica [[masa|mase]], jednaka 2,17644(11)×10&lt;sup&gt;−8&lt;/sup&gt;  [[kilogram]]a.  </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Planckova masa''', je [[Fizikalne konstante|fizikalna konstanta]], sa oznakom ''m&lt;sub&gt;P&lt;/sub&gt;'', a to je jedinica [[masa|mase]], jednaka 2,17644(11)×10&lt;sup&gt;−8&lt;/sup&gt;  [[kilogram]]a.  </div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Planckova masa se određuje sa:</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Planckova masa se određuje sa:</div></td></tr> </table>

WikiSysop https://enciklopedija.cc/index.php?title=Planckova_masa&diff=165864&oldid=prev 2021-09-27T04:34:05Z

<p>Bot: Automatski unos stranica</p> <p><b>Nova stranica</b></p><div>&lt;!--&#039;&#039;&#039;Planckova masa&#039;&#039;&#039;--&gt;&#039;&#039;&#039;Planckova masa&#039;&#039;&#039;, je [[Fizikalne konstante|fizikalna konstanta]], sa oznakom &#039;&#039;m&lt;sub&gt;P&lt;/sub&gt;&#039;&#039;, a to je jedinica [[masa|mase]], jednaka 2,17644(11)×10&lt;sup&gt;−8&lt;/sup&gt; [[kilogram]]a. <br /> <br /> Planckova masa se određuje sa:<br /> <br /> :&lt;math&gt;m_P=\sqrt{\frac{\hslash c}{G}}&lt;/math&gt;≈ 1,2209 x 10&lt;sup&gt;19&lt;/sup&gt; G[[eV]]/c&lt;sup&gt;2&lt;/sup&gt; = 2,17644(11) x 10&lt;sup&gt;-8&lt;/sup&gt; kg<br /> <br /> gdje je &#039;&#039;c&#039;&#039; – [[brzina svjetlosti]] u vakuumu, &#039;&#039;G&#039;&#039; – gravitacijska konstanta i &#039;&#039;ħ&#039;&#039; - reducirana [[Planckova konstanta]]. Dvije brojke u zagradama prestavljaju standardnu grešku.<br /> <br /> [[Fizičar]]i [[Elementarna čestica|elementarnih čestica]] i [[Kozmologija|kozmolozi]] često koriste &#039;&#039;&#039;reduciranu Planckovu masu&#039;&#039;&#039;, koja iznosi:<br /> <br /> :&lt;math&gt;\sqrt\frac{\hbar{}c}{8\pi G}&lt;/math&gt; ≈ 4,340 10&lt;sup&gt;-6&lt;/sup&gt; g = 2.43 × 10&lt;sup&gt;18&lt;/sup&gt; GeV/c&lt;sup&gt;2&lt;/sup&gt;<br /> <br /> Dodani faktor 1/√8π pojednostavljuje brojne jednadžbe u [[Opća teorija relativnosti|općoj teoriji relativnosti]]. Ime je dobila po [[Max Planck|Maxu Plancku]], jer je to otprilike veličina na koju [[kvant]] djeluje.<br /> <br /> ==Značaj==<br /> Planckova masa je masa Planckove čestice, teoretske minijaturne [[crna rupa|crne rupe]], čiji [[Schwarzschildov polumjer|Scwarzschildov polumjer]] je jednak [[Planckova duljina|Planckovoj duljini]].<br /> <br /> == Izvori ==<br /> # Peter Gabriel Bergmann: &quot;The riddle of gravitation&quot; [http://books.google.com/books?id=WYxkrwMidp0C&amp;pg=PR10] <br /> # Sivaram C.: &quot;WHAT IS SPECIAL ABOUT THE PLANCK MASS?&quot; [http://arxiv.org/abs/0707.0058 PDF]<br /> # Johnstone Stoney: Phil. Trans. Roy. Soc. 11, (1881)<br /> <br /> [[Kategorija:Termodinamika]]<br /> [[Kategorija:Fizikalne konstante]]</div>

WikiSysop