How far away is the Sun?
Mnemorya · Astronomy & Space
Mnemorya- Valoración — Esto se hace en la app, que ahora está en pruebas. Hazte tester.
- Comentarios 1 — Esto se hace en la app, que ahora está en pruebas. Hazte tester.
- Descargar — Esto se hace en la app, que ahora está en pruebas. Hazte tester.
- Tomar prestado — Esto se hace en la app, que ahora está en pruebas. Hazte tester.
Curso2 capítulos · 4 niveles · ~20 minPrincipianteNo background needed
The sunlight on your face is eight minutes old. Four short levels on how we measured space — with a thumb, a late moon and a ship sent halfway round the world to watch a planet cross the Sun.
Estás viendo el curso. Añádelo para empezar a aprender.
Lo que vas a aprender
- Explain why we always see the Sun as it was about eight minutes ago
- Describe how parallax lets us measure distances we can't walk
- Explain that a light-year is a distance, not a time
- Explain why planets closer to the Sun have shorter years
Capítulos
- Light takes timeYou know your street and your city. But how far is it to the next big house in the neighborhood — the Sun? Nobody has ever been there, and nobody has sent a tape measure. And yet we know its average distance to within a few meters.1 nivel
- Measuring the skyNobody has walked to the Sun or a star. So how do we know how far they are? With a thumb, a planet crossing the Sun and a lot of patience.3 niveles