Zvimwe mashoko ari mumitauro iyi anogona kunge ashandurwa nechigadzirwa chemachina uye anogona kusanganisira zvikanganiso. Kubatsira kuvandudzwa kwayo Ona chinyorwa chekutanga muChirungu
  1. _Kudzidza
Kuti munhu wese agadzirira a little maths

Mushandisi Webrowseri

Gravity, Kepler's mashoko, orbital zvinhu, speeds, kubuda, rocket equation uye sei spacecraft kufamba pakati panyika.

NASA/JPL/Space Science Institute

  1. Newton's gravity

    • Newton's gravity · 12 min

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

  2. Maitiro eKepler

    • Kepler's laws · 14 min

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

  3. Orbital elements

    • Orbital elements · 14 min

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

  4. Orbital speed: the vis-viva equation

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

      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. Escape velocity

    • Escape velocity · 12 min

      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. Nei orbit iri kudonha

    • Why an orbit is a fall · 10 min

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

  7. Kusvika ku orbit: gravity turn

    • Reaching orbit · 12 min

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

  8. The rocket equation and delta-v

    • The rocket equation and delta-v · 12 min

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

  9. Chimanimani transfers

    • Hohmann transfers: changing orbits · 12 min

      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. Kutanga mawindows

    • Launch windows: the road to Mars · 12 min

      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. Orbital insertion: getting captured

    • Orbital insertion: getting captured · 12 min

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

  12. Gravity aids

  13. Lagrange zviratidzo

    • Lagrange points: balance in the sky · 11 min

      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. Rendezvous uye kudonha

    • Rendezvous: catching the space station · 11 min

      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. Kudzoka kumba: reentry

    • Coming home: reentry · 11 min

      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. Porkchop plots

    Coming soon

  17. Asteroids uye kometa

    Coming soon

Zvigadzirwa uye zvidzidzo zvinoshandisa mamodheru akapusa ekudzidza chete. Hazvifanirwe kushandiswa kune yekufambisa, kumisikidza chiitiko kana chero chisarudzo chekushanda. Dzvanya pano kuti uwane ruzivo nezvezvinyorwa zvedzidzo