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2007-03-07 06:27:02 · 14 answers · asked by Anonymous in Science & Mathematics Chemistry

14 answers

Osmium is the densest known material. Lutetium is the hardest of the rare earth metals.

2007-03-07 11:09:40 · answer #1 · answered by Roman H 3 · 1 0

Quark matter, the densest material imaginable, is beginning to excite new interest among physicists.

But don't just take my word for it, go to www.ask.com and pose your question.

Also, you said material, not thing. Thus the densest THING, not the densest material, on Earth. That would probably be a neutron. While many subatomic particles are considered points, and thus could be thought of as having an infinite density, the neutron has a measurable size (about 10-15 m in diameter) as well as mass (about 1.7 x 10-27 kg). Those numbers result in a density of about 1018 kg/m3.

That value matches the estimated density of neutron stars, the densest objects known in the Universe. (A black hole's mass is concentrated in an immeasurable singularity). A single neutron is a smaller (MUCH smaller!) version of a neutron star, and the Earth is loaded with neutrons.

2007-03-07 14:37:51 · answer #2 · answered by Rahab 6 · 1 1

A Manchester United Supporter

2007-03-07 15:22:28 · answer #3 · answered by Anonymous · 1 1

John Prescotts brain

2007-03-07 14:40:12 · answer #4 · answered by Anonymous · 0 1

A black hole (it is infinite dense due to V = 0)

Otherwise its a Neutron Star

2007-03-07 14:32:17 · answer #5 · answered by SS4 7 · 1 0

Known to human you mean.

2007-03-07 14:30:29 · answer #6 · answered by PrincessLava 1 · 0 0

The skull of a fundamentalist, which encloses a perfect vacuum.

2007-03-07 15:04:47 · answer #7 · answered by hznfrst 6 · 0 1

Osmium, closely followed by several of my colleagues.

2007-03-07 14:30:28 · answer #8 · answered by The Transporter 5 · 0 0

My husband!
(Not really). But he can be very dense sometimes, for an intelligent man...

2007-03-07 19:01:02 · answer #9 · answered by Anonymous · 0 0

I'm not exactly sure what its called, but its the stuff between Dubya's ears.

2007-03-07 14:36:50 · answer #10 · answered by Anonymous · 0 1

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