Physical Sciences

Can JP Aerospace's Future Giant Airships Slowly Accelerate To Orbit? Looking At The Numbers

buoyancy still plays a role as a "hypersonic waverider" so in a way it does "float" all ...

Article - Robert Walker - Dec 17 2018 - 10:57pm

End Of All Life On Earth- A Billion Years From Now- Can It Be Avoided- And Who Will Be Here Then?

Sphaeroeca-colony It took less than a billion years for some creature a bit like this to evolve to us. So, for all ...

Article - Robert Walker - Jun 14 2022 - 8:33pm

Ten Reasons NOT To Live On Mars- Great Place To Explore

collects at the poles. It gets warm at midday, briefly, can go over 0 °C. So is not cold all the time, but ...

Blog Post - Robert Walker - Sep 9 2015 - 6:47pm

Galileo's Day Off

engineering solutions for everything from lasers to atomics, for example. Finally, all else being equal, the ...

Article - Alex "Sandy" Antunes - Apr 7 2009 - 3:09pm

Is This Why We Haven't Found Life On Mars Yet? Value Of Actually Looking

to build at all or too massive. Instruments that would fill an entire lab not that long ago, are now ...

Article - Robert Walker - Feb 21 2018 - 3:47pm

Supertranslations And Eternal Ghosts: Black Holes No Closer To Being Understood

holes. Black holes can swallow anything that comes too close, squashing all matter into the apparently ...

Article - The Conversation - Aug 31 2015 - 9:59am

All From Zilch: Much Ado About Nothing

universe. Even better: for a qualitative understanding of the ' All from Zilch ' paradigm you ...

Article - Johannes Koelman - Sep 27 2010 - 9:53am

Emergence: The Remarkable Simplicity Of Complexity

biological systems. It pervades all areas of science and is a manifestation of other complex interacting ...

Article - The Conversation - Oct 1 2014 - 9:01am

Space-times-time Invariance as Gravity, Part A: the Proposal

because it is the invariant interval that all inertial observers agree upon. Invariance principles are ...

Blog Post - Doug Sweetser - Dec 10 2015 - 9:45pm

ESO 510-G13: We Discovered A Warped Disc Of Massive Stars At The Edge Of Our Galaxy

in all directions. While that is not particularly difficult in directions above and below the stellar ...

Article - The Conversation - Feb 5 2019 - 8:00am