Tuesday, January 24, 2023

Familiar Sites, Familiar Sights

Three constellations on the ecliptic actually look almost like what they are supposed to be: Leo, Scorpius, and Taurus. Those probably go back to 5000 BCE if not earlier. By 1200 BCE, other constellations had been mapped by civilizations in Mesopotamia, Egypt, and China.  

22 January 2023 05:30 AM CST

The Romans were obsessive about order. Conforming with 12 inches to the foot, and 12 ounces to the pound, and 12 gods of Olympus, they created 12 zodiac constellations. The Claws of Scorpius became Libra.

Corvus 4 May 2021 23:00 to 23:20 Hours

Corvus 6 May 2022 22:12 Hours CDT

Scorpius 14 July 2015 22:43 to 22:48 CDT


Zuben Elgenubi 01 Feb 2021 05:35 to 06:00 CST


Xi Scorpii 19 June 2022 23:30 CDT

Xi Scorpii 19 June 2022 23:30 CDT

In The Odyssey, the hero is told to steer his raft by the Bear who looks at Orion. The Bear, Calypso says, is also known to others as the Wagon.


PREVIOUSLY ON NECESSARY FACTS

 

The Andromeda Galaxy 

Binary Star Project 

Two Deep-Sky Targets 

Neutron-Irradiated Dimes 


Monday, January 23, 2023

The Morning Sky

Stepping outside with the cat after her breakfast, I stopped to take in the sky. I felt comfort from the familiar sight and regret for not being involved with it. Astronomy is more affective than microscopy. 

In neither am I truly discovering anything. In both, I only see what others have said is there:  stars in a cluster; cells in a tissue. If not for the books (and websites) I would have little, if any, understanding of what I am looking at, though biology does allow more opportunity for informed inference. The walls of cells are visibly tractable while (with my instruments) the strata of stars are not.


On the left (south) Scorpius with Claws Zuben el Eshmali
and Zuben el Genubi. To the right (west) Corvus.
Xi Scorpii here and Corvus here.

The telescopes remain all packed away. Yesterday, I put the microscopes and slides back into storage. 

 

I expected to view the present conjunction of Saturn and Venus, and I watched the approach as of last week, but I put it off. I went out last night and saw only Venus. Checking the charts, I understood that a telescope would have provided the view I sought. 

 

PREVIOULSY ON NECESSARY FACTS

ELI the ICEman: Science and Technology 

Epigenetics 

Fantastic Voyages: Teaching Science with Science Fiction

The Madam Curie Complex 

Sunday, January 15, 2023

Microscopy (again)

Ahead of a medical procedure, I was cautioned that I will not be doing any bending and lifting for a couple of months or more. So, I packed away all of my telescopes and sealed the boxes until spring. Mars will be just past the meridian at 9:00 PM Central Time on March 15. In the meantime, I set up the dining table again for microscopy.


In numismatics we say, "If you don't know your coins, know your dealer." That applies in many areas. Reading in discussion groups online for amateur microscopy, several people raved  about the great deals they found on Goodwill dot com and I did buy two microscopes there. Nice enough as they were for the price, they were not great deals and from that point forward, I gathered bookmarks to websites for microscope retailers and name brands for scientific supplies. 



The Cloudy Nights discussion board for amateur astronomers has a forum for this, "Cloudy Days: Microscopes" here https://www.cloudynights.com/forum/104-cloudy-days-microscopes/  I also visit the Microbe Hunter discussion board here https://www.microbehunter.com/microscopy-forum/. That board is the work of Oliver Kim whose main board is Microbe Hunter: https://www.microbehunter.com He has been doing this for several years, has very many very helpful videos on YouTube, and sells by pass-through clicks on Amazon. Also on YouTube, I found Journey to the Microcosmos, which provides a lot of entertaining videos about very small things seen very large. 


Other hobbyists  online have recommended other resources such as Quekett, a UK group with international membership. Interesting as they all are, I have not joined anything new yet. (I just filed an article about the Huygens probe to Titan with the History of Astronomy Division of the American Astronomical Society. And I still have a day job.) 

PREVIOUSLY ON NECESSARY FACTS

 

A New Microscope

Microscopy 

Biohackers 

Biobash: Chamber Replicates Success 

Disruptive Diagnostics and the Business of Science