या पानाचे मशीन- भाषांतर केले गेले आहे व त्यात त्रुटी असू शकतात. सुधारण्यास मदत करा इंग्रजीतील लेख
  1. शिकवा
याचे मूळ नाव इव्हान व्लादिमीरोविच झेलेन्स्की असे होते.

संचारक

गुरुत्वाकर्षण, केप्लरचे नियम, कक्षा घटक, वेग, सुटका, रडार समीकरण आणि अंतराळ जहाजे जगांमध्ये कशी प्रवास करतात.

NASA/JPL/Space Science Institute

  1. न्यूटनचे गुरुत्वाकर्षण

    • Newton's gravity · 12 मिनिट

      One law explains falling apples, the Moon's orbit and the path of every planet. Fire Newton's cannon and find out how.

  2. केप्लरचे नियम

    • Kepler's laws · 14 मिनिट

      Three rules found from careful observations in the early 1600s still describe every orbit, from moons to exoplanets.

  3. कक्षीय घटक

    • Orbital elements · 14 मिनिट

      Six numbers pin down any orbit in space: its size, shape, tilt, orientation and where the body is on it.

  4. मुख्य पान: विकिमीडिया कॉमन्सवर व्ही.

    • Orbital speed: the vis-viva equation · 12 मिनिट

      One short equation gives the speed of anything in orbit at any point, if you know how far it is and the size of its orbit.

  5. गती

    • Escape velocity · 12 मिनिट

      How fast do you need to go to leave a world for good? And why rockets do not actually need to reach it at the surface.

  6. एक तारा म्हणजे एक तारकासमूह.

    • Why an orbit is a fall · 10 मिनिट

      Astronauts float not because there is no gravity up there, but because they are falling all the time, and missing.

  7. अंतराळात जाण्यासाठी: गुरुत्वाकर्षण वळण

    • Reaching orbit · 12 मिनिट

      Why rockets go up for only a few seconds, then spend ten minutes going sideways: the gravity turn, staging and orbital insertion.

  8. रॉकेट समीकरण आणि डेल्टा-व्ही

    • The rocket equation and delta-v · 12 मिनिट

      Why rockets are mostly fuel, why they come in stages, and the one equation behind every mission's budget.

  9. महाराष्ट्रातील जिल्हा

    • Hohmann transfers: changing orbits · 12 मिनिट

      To go higher you speed up, and then you arrive slower. The two-burn manoeuvre that moves satellites from low orbit to geostationary orbit.

  10. चौकट दाखल करा

    • Launch windows: the road to Mars · 12 मिनिट

      You cannot aim at Mars, only at where Mars will be in eight months. Why Mars missions leave every 26 months, all at once.

  11. ऑब्जेक्ट्स: ओपन सोर्स

    • Orbital insertion: getting captured · 12 मिनिट

      Arriving at a planet is the most dangerous minute of a mission: one burn decides whether you stay or fly past forever.

  12. गुरुत्वाकर्षण सहाय्य

    • Gravity assists: the free slingshot · 12 मिनिट

      How Voyager, Cassini and New Horizons stole speed from planets, and why it never breaks the conservation of energy.

  13. लाग्रेंज बिंदू

    • Lagrange points: balance in the sky · 11 मिनिट

      Five places around every pair of worlds where a spacecraft can ride along for free, and why the James Webb Space Telescope lives at one of them.

  14. रेंड्यूस व डॉकिंग

    • Rendezvous: catching the space station · 11 मिनिट

      To catch something ahead of you in orbit, you drop lower and go slower-looking but faster. The counter-intuitive art of meeting in space.

  15. घरात परत येणे:

    • Coming home: reentry · 11 मिनिट

      A small push slows a spacecraft by a hundred metres per second, and the air takes care of the other 7.8 kilometres per second, as a fireball.

  16. पोर्कचोप प्लॉट्स

    लवकरच

  17. ग्रहिका व धूमकेतू

    लवकरच

साधन व शिकवणी फक्त शिक्षणासाठी सोपे मॉडेल वापरतात. ते नेविगेशन, मिशन नियोजन किंवा कोणत्याही कार्यकारी निर्णयासाठी वापरले जाऊ नयेत. प्रमाणपत्र मोफत आणि मान्यता नसलेले आहे. शैक्षणिक विषयवस्तु प्रतिबंधक वाचा