MeteoritesSterling Pub., 1993 - 60 من الصفحات "A wonderful resource....Students will be drawn to read and investigate....The text is direct, interesting, and free of mind-numbing chemistry and physics formulas that so often deter YAs from further investigation....An exceptionally well-done summary."-- "SLJ . "Well-written and nicely illustrated....The technical quality of the book is very good...."-- "Science Bks & Films, a starred review . 60 pages (all in color), 8 1/4 x 7 7/8. |
من داخل الكتاب
النتائج 1-3 من 24
الصفحة 8
... material survives to subsonic speeds , the fireball is extinguished and the residue falls under gravity to become a meteorite . The last melted material on the surface of the body solidifies to form a thin , usually black , fusion crust ...
... material survives to subsonic speeds , the fireball is extinguished and the residue falls under gravity to become a meteorite . The last melted material on the surface of the body solidifies to form a thin , usually black , fusion crust ...
الصفحة 49
... material bound together by a variety of ices to form a " dirty snowball . " This is based on observations of comets when they are near the Sun. The Sun's radiation causes the surface of a comet to evaporate , which releases stony ...
... material bound together by a variety of ices to form a " dirty snowball . " This is based on observations of comets when they are near the Sun. The Sun's radiation causes the surface of a comet to evaporate , which releases stony ...
الصفحة 58
... material to determine the effects upon it of radiation in space . Perhaps the most difficult challenge , however , will be to make the various measurements on cometary material at the temperature of cometary interiors , perhaps -320 ° F ...
... material to determine the effects upon it of radiation in space . Perhaps the most difficult challenge , however , will be to make the various measurements on cometary material at the temperature of cometary interiors , perhaps -320 ° F ...
المحتوى
Introduction | 1 |
How do meteorites get here? | 8 |
Where do meteorites come from? | 14 |
حقوق النشر | |
3 من الأقسام الأخرى غير ظاهرة
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
anorthosite Antarctica Apollo astroblemes atmospheric flight basaltic basaltic achondrites basaltic rock blue ice bombardment bright fireball calcium carbonaceous chondrite caused chemical elements chondrites contain chondrules cometary composed cooled core Cosmic spherules crater crystals dark decay feldspar fell formation age fragments fusion crust gravity group IIAB Halley's Comet highlands howardites igneous rocks inches indicates interplanetary dust interstellar cloud iridium iron meteorites iron-nickel metal land on Earth liquid lunar magnesium mare Mars melting mesosiderites Meteor meteorite falls meteorite impact meteorite landed meteorite shower meteoroid micrometeorites million years ago mineral grains molten Moon nebula objects observed occurred olivine orbit palladium Pallasites parent asteroid particles percent nickel planetary planets formed plutonium produced pyroxene radioactive aluminum samples silicate SNC meteorites Solar System solar wind solidified sonic booms space speed stars stone stony material stony meteorite stony minerals Stony-iron meteorite sulfide Sun and planets supernova surface temperature Widmanstätten pattern