Wikipedia has an article on: <span class="searchmatch">Drake</span> <span class="searchmatch">equation</span> Wikipedia Named after American astrophysicist Frank <span class="searchmatch">Drake</span> (1930–2022). the <span class="searchmatch">Drake</span> <span class="searchmatch">equation</span> (exobiology) A formula...
d'Alembert's <span class="searchmatch">equation</span> delay differential <span class="searchmatch">equation</span> difference <span class="searchmatch">equation</span> differential <span class="searchmatch">equation</span> Diophantine <span class="searchmatch">equation</span> Dirac <span class="searchmatch">equation</span> <span class="searchmatch">Drake</span> <span class="searchmatch">equation</span> Duffing <span class="searchmatch">equation</span> Ehrenfest...
between the high probability of the existence of extraterrestrial beings and the lack of observed evidence for such beings. <span class="searchmatch">Drake</span> <span class="searchmatch">equation</span> Fermi paradox...
in our galaxy, a problem that came to be known as the Fermi Paradox. <span class="searchmatch">Drake</span> <span class="searchmatch">equation</span> exobiology Sagan's paradox Fermi paradox, Fermi Paradox at the Google...