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News tagged with rock

Soviet find of water on the Moon in the 1970s ignored by the West

(Phys.org) -- In August 1976 Luna 24 landed on the moon and returned to Earth with samples of rocks, which were found to contain water, but this finding was ignored by scientists in the West.

Space & Earth / Space Exploration

created Jun 01, 2012 | popularity 4.7 / 5 (36) | comments 35 | with audio podcast report

The Secret of Life May Be As Simple As What Happens Between the Sheets -- Mica Sheets

(PhysOrg.com) -- That age-old question, "where did life on Earth start?" now has a new answer. If the life between the mica sheets hypothesis is correct, life would have originated between sheets of mica that ...

Biology / Biotechnology

created Aug 06, 2010 | popularity 4 / 5 (40) | comments 265 | with audio podcast

Scottish rocks reveal key point in evolution occurred 400 million years earlier

Evidence found in Scottish rocks has revealed that a critical point in evolution took place 1.2 billion years ago -- several hundred million years earlier than scientists had previously understood.

Space & Earth / Earth Sciences

created Nov 10, 2010 | popularity 4.6 / 5 (29) | comments 18 | with audio podcast

Researchers discover water on the moon is widespread, similar to Earth's

Researchers at the University of Tennessee, Knoxville, are once again turning what scientists thought they knew about the moon on its head.

Space & Earth / Space Exploration

created Jul 21, 2010 | popularity 5 / 5 (23) | comments 25 | with audio podcast

Where does all the gold come from?

Ultra high precision analyses of some of the oldest rock samples on Earth by researchers at the University of Bristol provides clear evidence that the planet's accessible reserves of precious metals are the ...

Space & Earth / Earth Sciences

created Sep 07, 2011 | popularity 4.4 / 5 (24) | comments 36 | with audio podcast

Oldest fossils ever found may not be fossils after all

(PhysOrg.com) -- A rock formation in Western Australia was the site of great excitement a couple of decades ago when it revealed evidence of the oldest fossils of bacteria ever found, but a new study casts ...

Space & Earth / Earth Sciences

created Feb 21, 2011 | popularity 4.7 / 5 (22) | comments 53 | with audio podcast report

Algeo tracks evidence of 'The Great Dying'

More than 251 million years ago, at the end of the Permian period, Earth almost became a lifeless planet. Around 90 percent of all living species disappeared then, in what scientists have called "The Great Dying."

Space & Earth / Earth Sciences

created Oct 28, 2010 | popularity 4.9 / 5 (17) | comments 0 | with audio podcast

Earth's oldest fossils boost hopes for life on Mars

(PhysOrg.com) -- Microfossils found in Australia show that more than 3.4 billion years ago, bacteria thrived on an Earth that had no oxygen, a finding that boosts hopes life has existed on Mars, a study published ...

Space & Earth / Earth Sciences

created Aug 21, 2011 | popularity 4.9 / 5 (17) | comments 11

New force driving Earth's tectonic plates discovered

Bringing fresh insight into long-standing debates about how powerful geological forces shape the planet, from earthquake ruptures to mountain formations, scientists at Scripps Institution of Oceanography at ...

Space & Earth / Earth Sciences

created Jul 06, 2011 | popularity 4.8 / 5 (17) | comments 11 | with audio podcast

Scientists find microbes in lava tube living in conditions like those on Mars

(PhysOrg.com) -- A team of scientists from Oregon has collected microbes from ice within a lava tube in the Cascade Mountains and found that they thrive in cold, Mars-like conditions.

Space & Earth / Space Exploration

created Dec 15, 2011 | popularity 4.8 / 5 (17) | comments 13 | with audio podcast

Rock analysis suggests France cave art is 'oldest'

Experts have long debated whether the sophisticated animal drawings in a famous French cave are indeed the oldest of their kind in the world, and a study out Monday suggests that yes, they are.

Other Sciences / Archaeology & Fossils

created May 07, 2012 | popularity 4.8 / 5 (17) | comments 3

The most profitable asteroid is...

With the recent announcement of the asteroid mining company, Planetary Resources, some of the most-asked questions about this enticing but complex endeavor include, what asteroids do we mine? Which are the ...

Space & Earth / Space Exploration

created May 17, 2012 | popularity 4.5 / 5 (17) | comments 60

Geologists get unique and unexpected opportunity to study magma

Geologists drilling an exploratory geothermal well in 2009 in the Krafla volcano in Iceland encountered a problem they were simply unprepared for: magma (molten rock or lava underground) which flowed unexpectedly ...

Space & Earth / Earth Sciences

created Feb 16, 2011 | popularity 5 / 5 (15) | comments 7 | with audio podcast

Scientists stumble on ancient Timor rock art

Scientists hunting for fossils of giant rats in East Timor stumbled on unique rock carvings up to 12,000 years old, Australia's research agency said.

Other Sciences / Archaeology & Fossils

created Feb 11, 2011 | popularity 4.9 / 5 (15) | comments 3

Research team suggests rock found in Russia an extraterrestrial quasicrystal

(PhysOrg.com) -- Sometimes in science, the journey is just as interesting as the findings, and that certainly appears to be the case with a disparate group of scientists and their involvement with a simple ...

Chemistry / Materials Science

created Jan 04, 2012 | popularity 4.8 / 5 (15) | comments 4 | with audio podcast report

Rock music

Rock music is a loosely defined genre of popular music that entered the mainstream in the mid 1950s. It has its roots in 1940s and 1950s rhythm and blues, country music and also drew on folk music, jazz, and classical music.

The sound of rock often revolves around the electric guitar or acoustic guitar, and it uses a strong back beat laid down by a rhythm section of electric bass guitar, drums, and keyboard instruments such as organ, piano, or, since the 1970s, synthesizers. Along with the guitar or keyboards, saxophone and blues-style harmonica are sometimes used as soloing instruments. In its "purest form", it "has three chords, a strong, insistent back beat, and a catchy melody."

In the late 1960s and early 1970s, rock music developed different subgenres. When it was blended with folk music it created folk rock, with blues to create blues-rock and with jazz, to create jazz-rock fusion. In the 1970s, rock incorporated influences from soul, funk, and latin music. Also in the 1970s, rock developed a number of subgenres, such as soft rock, glam rock, heavy metal, hard rock, progressive rock, and punk rock. Rock subgenres that emerged in the 1980s included New Wave, hardcore punk and alternative rock. In the 1990s, rock subgenres included grunge, Britpop, indie rock, and nu metal.

A group of musicians specializing in rock music is called a rock band or rock group. Many rock groups consist of an electric guitarist, lead singer, bass guitarist, and a drummer, forming a quartet. Some groups omit one or more of these roles and/or utilize a lead singer who plays an instrument while singing, sometimes forming a trio or duo; others include additional musicians such as one or two rhythm guitarists and/or a keyboardist. More rarely, groups also utilize stringed instruments such as violins or cellos, woodwind instruments such as saxophones, and brass instruments such as trumpets or trombones.

For more information about Rock music, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: mars