My Followers:

Sunday, June 25, 2023

The Space Stations

The Space stations :  

                                           Imagine living 380 km ( 235 miles ) above everybody eise, experiencing a sunrise every 45 minutes, sending your cloths to burned up in the atmosphere rather than  washed, and having no floor or ceiling. welcome to Space Station.  


ISS (International Space Station)


A Quick History :

                 The first space station was launched in 1971. Since then a number of stations have orbited Earth. The International Space  Station ( ISS ) , has been built by 16 nations working together. The  largest space station ever built, it's been occupied since 2000 . 


ISS launched in 1971 

 


First Ideas : 

                        Ideas for the space stations existed a long time before they became reality . In the 1950s, a 76 metre ( 250 ft )  - wide wheel-shaped design  ( like in the Interstellar ) was proposed by space scientist Wernher Von Braun .  

 

Wernher Von Braun


What is Space station : 

                                   It's a space laboratory that orbits Earth, operated by the crews of astronauts who take turns crew stays for several months. Occasionally, an astronaut  has stayed a whole year! , The solar panels are used to power the space station.   


Body Parts of International Space Station 


Some of the Space Station :

                                              Salyut 1 : Launched in 1971 and in orbit for 175 days.

                                           Salyut 7 : Launched in 1982 and in orbit for 3,216 days.

                                          Skylab :  Launched in May 1973 by the USA. It burned up in 1979.

                                          Mir : Built in space by the Soviet Union, beginning in 1986. It fell into the atmosphere in march 2001.     

                       



“ Building one space station for everyone was and is insane: we should have built a dozen. ”

                           ______Larry Niven.______       

 


    

Why Light Bends by Gravity?

Introduction to General Relativity: The Equivalence Principle Einstein's theory of General Relativity builds on the Equivalence Principl...