View Profile: SRH - Cosmoquest Forum

2021-Mar-06, 04:25 PM

Jerry replied to a thread SpaceX in Space Exploration

The entire bottom surface of a 777 is calculated as wing cross section, curved or otherwise a solid surface provides lift if canted into a gas flow. ...

4552 replies | 651934 view(s)

2021-Mar-03, 05:44 PM

Copernicus replied to a thread Disease and pandemics thread (because it's science) in Science and Technology

T cell immunity gets really bad with aging. The thymus turns to fat.

2580 replies | 187962 view(s)

2021-Feb-17, 03:52 PM

Copernicus replied to a thread Hyperspherical Universe without Singularities. in Against the Mainstream

The matter in the universe is not too old. The entropy is low. How is that explained in your theory?

72 replies | 2316 view(s)

2021-Feb-16, 04:19 PM

Copernicus replied to a thread Hyperspherical Universe without Singularities. in Against the Mainstream

Where is the beef. I never see any math here!

72 replies | 2316 view(s)

2021-Feb-14, 09:06 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

The most recent descent missions to the atmosphere and surface of Venus were in 1985. The WOW signal was transient. The dark areas in the...

1172 replies | 86747 view(s)

2021-Feb-14, 04:33 AM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

I'm saying that the net we're casting for ET life hasn't been wide enough. For instance, we've closed our eyes to the possibility of life in the...

1172 replies | 86747 view(s)

2021-Feb-13, 11:26 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

The dark patches in the clouds of Venus are easily detectable by ultraviolet photography. What is less easy, is establishing whether they are caused...

1172 replies | 86747 view(s)

2021-Feb-13, 10:02 PM

ToSeek replied to a thread MER press conference - March 18, 2004 in Space Exploration

I just wanted to revisit this and note that my erstwhile crush has gone on to become a Rhodes Scholar and tenured PhD planetary scientist with her...

15 replies | 2208 view(s)

2021-Feb-12, 08:59 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

"Obvious" is not the way I'd put it. What I am saying, is that microbial populations can have effects which you don't need a microscope to...

1172 replies | 86747 view(s)

2021-Feb-12, 09:33 AM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

But... Populations of ET microbes * may be at interplanetary distances not interstellar distances * are comparable (if they exist) to what...

1172 replies | 86747 view(s)

2021-Feb-11, 09:53 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

I'd suggest that the first step is to look for life in general, including microbial life. When we know a bit more about how widespread or...

1172 replies | 86747 view(s)

2021-Feb-11, 09:09 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

Thing is, the past two centuries on Earth show that industrial technology changes fast. Do we really know where it's going? How much idea do we...

1172 replies | 86747 view(s)

2021-Feb-10, 09:04 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

What we seem to be looking for is evidence of industrial revolutions...

1172 replies | 86747 view(s)

2021-Feb-10, 12:45 AM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

I agree (up to a point) that we have to start from what we know. Although one thing we know from studying life on Earth is that life is diverse. ...

1172 replies | 86747 view(s)

2021-Feb-08, 11:10 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

The phrase "Eerie Silence" refers to part of the Fermi Paradox. The Fermi Paradox is about why we don't observe a range of things that would be...

1172 replies | 86747 view(s)

2021-Feb-08, 11:00 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

One of the things I'm skeptical of, is whether species that evolve on different planets are likely to be understand messages they might beam out to...

1172 replies | 86747 view(s)

2021-Feb-07, 08:48 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

What, in your opinion, is the most likely explanation for what Paul Davies calls "the eerie silence"?

1172 replies | 86747 view(s)

2021-Feb-06, 09:32 PM

Colin Robinson replied to a thread What do you think is the most likely explanation for the Fermi paradox? in Life in Space

How long do you think groups of humans will keep sending out messages, if we don't detect any messages from others? Decades? Centuries?...

1172 replies | 86747 view(s)