يولباشلىغۇچى

1. 1

   نىيۇتوننىڭ تارتىش كۈچى

   • Newton's gravity · 12 مىنۇت

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

2. 2

   كېپلېر قانۇنلىرى

   • Kepler's laws · 14 مىنۇت

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

3. 3

   ئوربىتال ئەزا

   • Orbital elements · 14 مىنۇت

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

4. 4

   ئوربىتىدا تېزلىك: vis-viva تەڭلىمىسى

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

     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. 5

   ئېچىش سۈرئىتى

   • Escape velocity · 12 مىنۇت

     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. 6

   نېمە ئۈچۈن بىر ئوربىتا چۈشىدۇ

   • Why an orbit is a fall · 10 مىنۇت

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

7. 7

   ئوربىتىگە يېتىش: جاۋابكارلىقنى ئۆزگەرتىش

   • Reaching orbit · 12 مىنۇت

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

8. 8

   روكېت تەڭلىمى ۋە delta-v

   • The rocket equation and delta-v · 12 مىنۇت

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

9. 9

   Hohmann يۆتكەش

   • Hohmann transfers: changing orbits · 12 مىنۇت

     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. 10

    كۆزنەكلەرنى قوزغات

    • Launch windows: the road to Mars · 12 مىنۇت

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

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    ئوربىتىلىق كىرگۈزۈش: تۇتۇپ ئېلىنماقتا

    • Orbital insertion: getting captured · 12 مىنۇت

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

12. 12

    Gravity ياردەمچىسى

    • Gravity assists: the free slingshot · 12 مىنۇت

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

13. 13

    لاگرانج نۇقتىلىرى

    • Lagrange points: balance in the sky · 11 مىنۇت

      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. 14

    رېندۇس ۋە دۇكىلاش

    • Rendezvous: catching the space station · 11 مىنۇت

      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. 15

    ئۆيگە قايتىپ كېلىش: قايتا كىرىشكە

    • Coming home: reentry · 11 مىنۇت

      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.

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    Porkchop گرافىكلىرى

    يېقىندا چىقىدۇ

17. 17

    ئاستىرېئېتلار ۋە قۇياش سىستېمىسى

    يېقىندا چىقىدۇ

قوراللار ۋە دەرسلىكلەر پەقەتلا ئۆگىنىش ئۈچۈن ئىشلىتىلگەن ئاددىيلاشتۇرۇلغان مودېللارنى ئىشلىتىدۇ. ئۇلارنى يول كۆرسەتكۈچ، خىزمەت تۈزۈش ياكى ھەرقانداق بىر ئىشقا ئورۇنلاشتۇرۇشتا ئىشلىتىشكە بولمايدۇ. ئىسپاتنامە ھەقسىز ۋە تەستىقلانمىغان. مائارىپ مەزمۇنىنىڭ مەسئۇلىيەتنى قوبۇل قىلماسلىقنى ئوقۇش