Some physicists now speculate that superconductivity could occur at room temperature, making it even easier to achieve.

Before Jansky observed the Milky Way in the 1930s, physicists speculated that radio waves could be observed from astronomical sources.

I was as- tonished for a second, until I realized that here was some kind of telepathic communicator which we physicists had only speculated about.

Just as they put their minds to teasing out the subtle symmetries of nature, some physicists speculate on why they are drawn to mountains.

Some physicists speculate that on the other side of the looking glass of Time Zero is another universe going backward in time.

Nevertheless, many physicists have speculated about what would have preceded this limit, and how the universe came into being.

Some physicists have speculated that the temperatures of these bubbles might be as hot as those of the sun.

(Modem-day physicists have speculated mat perhaps the Giants see by neutrino-like particles.)

Some physicists speculate that the mirror matter is just regular matter trapped in another dimension.

But physicists as far back as Michael Faraday in the 1830's have speculated about the advantages of using a liquid or a gas as the conductor.