Tag Archives: Mars

Sandstone


Sandstone

Sandstone is a sedimentary rock formed when

English: A classification chart of sedimentary...

English: A classification chart of sedimentary rocks. (Photo credit: Wikipedia)

grains of sand have been cemented together by a material such as silica, iron oxide, or calcium carbonate. It usually consists mainly of quartz and can vary in color from yellow or red to gray or brown. Sandstone’s porous nature makes it ideal for aquifers, and it is also widely used in construction and industry. Why is sandstone commonly used for decorative features in buildings? More… Discuss

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quotation: If we don’t end war, war will end us. H.G. Wells


If we don’t end war, war will end us.

H.G. Wells (1866-1946) Discuss

this day in history: Pioneer 10 – First Craft to Leave Solar System, Perhaps (1983)


Pioneer 10: First Craft to Leave Solar System, Perhaps (1983)

Launched in 1972, Pioneer 10 was the first spacecraft to travel through the asteroid belt between Mars and Jupiter and to make up-close observations of Jupiter, capturing images that were later sent back to Earth. It passed the orbit of Neptune in 1983 and became by some definitions the first artificial object to leave our solar system. By February 1998, the probe was over 7.5 billion miles from Earth but lost its title as the most distant man-made object to what craft? More… Discuss

Gustav Holst – The Planets, Op. 32 Andre Previn/the Royal Philharmonic Orchestra,: GREAT COMPOSITIONS/PERFORMANCES



Gustav Holst – The Planets, Op. 32

Conductor: Andrè Previn & Royal Philharmonic Orchestra

“The Planets”, Op. 32, is a seven-movement orchestral suite by the English composer Gustav Holst, written between 1914 and 1916. Each movement of the suite is named after a planet of the Solar System and its corresponding astrological character as defined by Holst. With the exception of Earth, which is not observed in astrological practice, all the planets are represented.
The idea of the work was suggested to Holst by Clifford Bax, who introduced him to astrology when the two were part of a small group of English artists holidaying in Majorca in the spring of 1913; Holst became quite a devotee of the subject, and liked to cast his friends’ horoscopes for fun.
The suite has seven movements, each named after a planet and its corresponding astrological character:
1. Mars, the Bringer of War (00:00 – 07:21)
2. Venus, the Bringer of Peace (07:22 – 15:59);
3. Mercury, the Winged Messenger (16:00 – 19:51);
4. Jupiter, the Bringer of Jollity (19:52 – 27:49);
5. Saturn, the Bringer of Old Age (27:50 – 36:31);
6. Uranus, the Magician (36:32 – 42:14)
7. Neptune, the Mystic (42:15 – 49:01). Continue reading