Space.com
International Space Station at 20: Former astronauts talk about living and working in space
The International Space Station is celebrating 20 years of having astronauts continuou…
Space.com
'Fireball' meteorite that crashed in Michigan holds extraterrestrial organic compounds
A fireball meteor lit up midwestern skies on Jan. 16, 2018, then landed on a frozen Mi…
Space.com
The brightest planets in November's night sky: How to see them (and when)
Here's how to see planets visible in November's night sky. from Space.com ht…
Space.com
Best night sky events of November 2020 (stargazing maps)
See what's up in the night sky for November 2020, including stargazing events and …
Space.com
Night sky, November 2020: What you can see this month [maps]
Find out what's up in your night sky during November 2020 and how to see it in thi…
Civil Engineering Community
ETABS v19 Manuals
Content Composite Beam Design Composite Column Design Concrete Frame Design Conc…
ETABS v19 Manuals
Content Composite Beam Design Composite Column Design Concrete Frame Design Conc…
The Constructor
What are the Factors Controlling the Distance Between RCC Columns?
There is no specific rule to determine the desired distance between reinforced concret…
The Constructor
What are the Factors Controlling the Distance Between RCC Columns?
There is no specific rule to determine the desired distance between reinforced concret…
Building Code Requirements for Structural Concrete (ACI 318-19) – IN/LB and SI Version
The "Building Code Requirements for Structural Concrete” ("Code”) provides …
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