The radio telescope has a diameter of 305 metres.

The diameter of the hole was slightly larger.

As a consequence, the polar diameter of Earth increases, and because the mass and density remain the same, the volume remains the same therefore the equatorial diameter is decreasing.

The mirror, shown in the image, had a diameter of five metres.

Is it possible to determine the diameter from the circumference?

The primary mirror of the infrared space telescope has a diameter of 6.5 metres.

So think about water flowing in pipes where the pipes have different thickness.

The diameter of the gold star is and the platinum stars are in diameter.

This in spite of its comparatively low mirror diameter even matches that of the world's largest reflector telescopes.

Most viruses that have been studied have a diameter between 20 and 300 nanometres.

PM 2.5 is fine particulate matter its diameter is less than 20 percent of a single hair.

And then there was a second level to this object, which is that it I wanted it to convey some proportions that I was interested in, which is the diameter of the Moon and the diameter of the Earth in proportion to each other.

The celestial body is very dim and its diameter is about 200 kilometres, the publication, New Scientist , writes.

The inner workings of the Gran Telescopio Canarias on the Canarian island of La Palma are huge the mirror alone has a diameter of 10.4 metres.

The second formula is actually more accurate, but field stop size is not usually specified by most manufacturers.

Some filoviruses have a total length of up to 1400 nm their diameters are only about 80 nm.

The column is a single piece of red granite, 25.45 m (83 ft 6 in) long and about 3.5 m (11 ft 5 in) in diameter.

At in diameter, Callisto has about 99 the diameter of the planet Mercury but only about a third of its mass.

Titania is the largest of the moons of Uranus and the eighth largest moon in the Solar System at a diameter of .

Telescopic observations of the cluster reveal about 80 stars within a field of view of 1.3 across.

If there were a crater of an equivalent scale on Earth it would be over in diameter, wider than Australia.

This is the Keck observatory. It hosts two telescopes with a mirror 10 meters, which is roughly the diameter of a tennis court.

If Rømer had known the diameter of the Earth's orbit, he would have calculated a speed of 227,000,000 m s.

It's roughly 250 yards across, so it's pretty big big size, you know, bigger than a football stadium and it's going to pass by the Earth in April of 2029.

Noting discrepancies in the apparent period of Io's orbit, he calculated that light takes about 22 minutes to traverse the diameter of Earth's orbit.

In humans, the cornea has a diameter of about 11.5 mm and a thickness of 0.5 0.6 mm in the center and 0.6 0.8 mm at the periphery.

Thus a 7.62 mm caliber round seems numerically arbitrary, until it is realised that 7.62 mm is 0.3 inches, .30 cal or three lines.

Considerable gravity Mercury is larger than the Moon, with a diameter of 4,879 km versus 3,476 km, and has a higher density due to its large iron core.

The problem is the spacecraft's largest diameter is nine feet ARES is 21 foot wingspan, 17 feet long.

Its angular diameter is between 3.4 and 3.7 arcseconds, compared with 16 to 20 arcseconds for Saturn and 32 to 45 arcseconds for Jupiter.

Galactic context The Solar System is located in the Milky Way, a barred spiral galaxy with a diameter of about 100,000 light years containing about 200 billion stars.

On September 8, 2001, Titania occulted a bright star (HIP106829) with a visible magnitude of 7.2 this was an opportunity to both refine the moon's diameter and ephemeris, and to detect any extant atmosphere.

There are estimated to be over 100,000 Kuiper belt objects with a diameter greater than 50 km, but the total mass of the Kuiper belt is thought to be only a tenth or even a hundredth the mass of Earth.

At more than 360 meters in diameter, the asteroid, Apophis, is a dozen times larger than the Tunguska space object (presumably a meteorite or comet) that devastated a large part of eastern Siberia a century ago.

Charon is considered to be a satellite of the (dwarf) planet Pluto. However, because its diameter is more than half as large as that of Pluto itself, it can be considered an equal partner and Pluto and Charon can be considered a double planet.

What Darwin said was something like this if you have creatures that vary, and that can't be doubted I've been to the Galapagos, and I've measured the size of the beaks and the size of the turtle shells and so on, and so on.

It was huge. To give you a sense of the scale, okay, there you go. The scale here is 50 miles on top, a hundred kilometers on the bottom. This thing was 300 kilometers across 200 miles an enormous crater that excavated out vast amounts of earth that splashed around the globe and set fires all over the planet, threw up enough dust to block out the sun.