(PhysOrg.com) -- Two Pioneer probes left our solar system carrying plaques about humankind, and two Voyager probes will soon join them to gather information about places far out in our galaxy. We can and will send more autonomous ...
Space Exploration
Nov 7, 2011
9
0
(PhysOrg.com)—Enrico Fermi, the famous Italian physicist, once asked the question; if intelligent life has come to exist many times in our galaxy, why is there no sign of it? It's a clearly valid point, when you consider ...
Why have we not made contact with aliens after so many years searching the depths of space? The Eerie Silence, a new book by SETI researcher Paul Davies, provides a fresh and thoughtful look at this question.
Space Exploration
Apr 15, 2010
71
0
In a 1954 speech to the American Physical Society, the University of Chicago's Enrico Fermi fancifully envisioned a particle accelerator that encircled the globe. Such would be the ultimate theoretical outcome, Fermi surmised, ...
General Physics
Feb 9, 2010
18
0
(PhysOrg.com) -- For more than 50 years, many have taken the so-called Fermi Paradox to indicate that the existence of intelligent alien civilizations is an impossibility. However, a recent re-examination of the paradox points ...
Florence was a flourishing center for fundamental physics research throughout most of the twentieth century. Roberto Casalbuoni, Daniele Dominici and Massimo Mazzoni—all physicists currently working there—have reviewed ...
General Physics
Feb 13, 2023
0
8
It is 1950 and a group of scientists are walking to lunch against the majestic backdrop of the Rocky Mountains. They are about to have a conversation that will become scientific legend. The scientists are at the Los Alamos ...
Astronomy
Aug 8, 2019
11
155
Imagine a metal bar that has been heated at one end. Instead of the heat gradually spreading over its entire length, the bar eventually becomes hot again at the place where it was originally. The fact that, paradoxically, ...
Quantum Physics
Jun 13, 2018
3
22
In March 1938, the young Italian physicist Ettore Majorana disappeared mysteriously, leaving his country's scientific community shaken. The episode remains unexplained, despite Leonardo Scascia's attempt to unravel the enigma ...
Quantum Physics
Apr 9, 2018
0
15
People, trucks and even military tanks have tried and failed the task of pulling apart two phone books lying face up with their pages interleaved, like a shuffled deck of cards. While physicists have long known that this ...
General Physics
Aug 27, 2015
0
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