XKCD "WHAT IF" is generally awesome, but today was particularly awesome for those of us who like math and like The Proclaimers and think space is really cool... so me.

XKCD "WHAT IF" is generally awesome, but today was particularly awesome for those of us who like math and like The Proclaimers and think space is really cool... so me.

Orbital Speed: How Do Satellites Orbit? | Education.com

Orbital Speed: How Do Satellites Orbit?

What If?: Orbital Speed - You'd be moving at about 15 subway stops per second.

What If?: Orbital Speed - You'd be moving at about 15 subway stops per second.

Atomic Printworks The Moon Print: This glow in the dark screen print of 'The Moon' gives a detailed view of the Moon as seen from Earth, it also has further information including radius, mass, orbital speed and gravity.

Atomic Printworks The Moon Print: This glow in the dark screen print of 'The Moon' gives a detailed view of the Moon as seen from Earth, it also has further information including radius, mass, orbital speed and gravity.

Atomic Printworks Jupiter Screenprint: This glow in the dark print presents a detailed view of the planet Jupiter, with a luminous phosphorescent coating so it really comes alive when the lights are switched off! It also details information including radius, mass, orbital speed and gravity.  This astronomically-themed glowing space poster is very popular with kids and adults alike, and is easily displayed in a standard 700 x 500mm frame.

Atomic Printworks Jupiter Screenprint: This glow in the dark print presents a detailed view of the planet Jupiter, with a luminous phosphorescent coating so it really comes alive when the lights are switched off! It also details information including radius, mass, orbital speed and gravity. This astronomically-themed glowing space poster is very popular with kids and adults alike, and is easily displayed in a standard 700 x 500mm frame.

Orbital Speed of Planets in Order – Rotational Speed Comparison ...

Orbital Speed of Planets in Order – Rotational Speed Comparison ...

Predicted appearance of non-rotating black hole with toroidal ring of ionised matter, such as has been proposed[8] as a model for Sagittarius A*. The asymmetry is due to the Doppler effect resulting from the enormous orbital speed needed for centrifugal balance of the very strong gravitational attraction of the hole.

Predicted appearance of non-rotating black hole with toroidal ring of ionised matter, such as has been proposed[8] as a model for Sagittarius A*. The asymmetry is due to the Doppler effect resulting from the enormous orbital speed needed for centrifugal balance of the very strong gravitational attraction of the hole.

Orbital Speed: How Do Satellites Orbit? Experiment | Education.com

Orbital Speed: How Do Satellites Orbit?

Orbital Speed: How Do Satellites Orbit? Experiment | Education.com

Orbital Speed: How Do Satellites Orbit? | Education.com

Orbital Speed: How Do Satellites Orbit?

This streak is the last image ever of the space shuttle's reentry into earth's atmosphere from orbit.

This streak is the last image ever of the space shuttle's reentry into earth's atmosphere from orbit.

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