双语有声读物

Of the two, Cope's scientific legacy was much the more substantial. In a breathtakingly industrious career, he wrote some 1,400 learned papers and described almost 1,300 new species of fossil (of all types, not just dinosaurs)more than double Marsh's

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As for the other players in this drama, Owen died in 1892, a few years before Cope or Marsh. Buckland ended up by losing his mind and finished his days a gibbering wreck in a lunatic asylum in Clapham, not far from where Mantell had suffered his crip

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Of course dinosaur hunting didn't end with the deaths of the great nineteenth-century fossil hunters. Indeed, to a surprising extent it had only just begun. In 1898, the year that fell between the deaths of Cope and Marsh, a trove greater by far than

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7 Elemental Matters 7 基本物质 Chemistry as an earnest and respectable science is often said to date from 1661, when Robert Boyle of Oxford published The Sceptical Chymistthe first work to distinguish between chemists and alchemistsbut it was a s

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The commercial potential for the stuffwhich soon became known as phosphorus, from Greek and Latin roots meaning light bearingwas not lost on eager businesspeople, but the difficulties of manufacture made it too costly to exploit. An ounce of phosphor

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Scheele's one notable shortcoming was a curious insistence on tasting a little of everything he worked with, including such notoriously disagreeable substances as mercury, prussic acid (another of his discoveries), and hydrocyanic acida compound so f

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Although chemistry had come a long way in the century that separated Newton and Boyle from Scheele and Priestley and Henry Cavendish, it still had a long way to go. Right up to the closing years of the eighteenth century (and in Priestley's case a li

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Someone of insight was needed to thrust chemistry into the modern age, and it was the French who provided him. His name was Antoine-Laurent Lavoisier. Born in 1743, Lavoisier was a member of the minor nobility (his father had purchased a title for th

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As a leading member of the Acadmie Royale des Sciences, he was also required to take an informed and active interest in whatever was topicalhypnotism, prison reform, the respiration of insects, the water supply of Paris. It was in such a capacity in

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Other scientists besides Kelvin turned their minds to the problem and came up with results that only deepened the uncertainty. Samuel Haughton, a respected geologist at Trinity College in Dublin, announced an estimated age for the Earth of 2,300 mill

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Despite the occasional tidyings-up, chemistry by the second half of the nineteenth century was in something of a mess, which is why everybody was so pleased by the rise to prominence in 1869 of an odd and crazed-looking professor at the University of

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The nineteenth century held one last great surprise for chemists. It began in 1896 when Henri Becquerel in Paris carelessly left a packet of uranium salts on a wrapped photographic plate in a drawer. When he took theplate out some time later, he was

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For most of us, the periodic table is a thing of beauty in the abstract, but for chemists it established an immediate orderliness and clarity that can hardly be overstated. Without a doubt, the Periodic Table of the Chemical Elements is the most eleg

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The structure of atoms and the significance of protons will come in a following chapter, so for the moment all that is necessary is to appreciate the organizing principle: hydrogen has just one proton, and so it has an atomic number of one and comes

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Mendeleyev used a slightly different approach, placing his elements into groups of seven, but employed fundamentally the same principle. Suddenly the idea seemed brilliant and wondrously perceptive. Because the properties repeated themselves periodic

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Mendeleyev dutifully completed his studies and eventually landed a position at the local university. There he was a competent but not terribly outstanding chemist, known more for his wild hair and beard, which he had trimmed just once a year, than fo

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In 1793, the Reign of Terror, already intense, ratcheted up to a higher gear. In October Marie Antoinette was sent to the guillotine. The following month, as Lavoisier and his wife were making tardy plans to slip away to Scotland, Lavoisier was arres

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In the early 1800s there arose in England a fashion for inhaling nitrous oxide, or laughing gas, after it was discovered that its use was attended by a highly pleasurable thrilling. For the next half century it would be the drug of choice for young p

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Things might have been worse had it not been for a splendidly improbable character named Count von Rumford, who, despite the grandeur of his title, began life in Woburn, Massachusetts, in 1753 as plain Benjamin Thompson.Thompson was dashing and ambit

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In between these undertakings, he somehow found time to conduct a good deal of solid science. He became the worlds foremost authority on thermodynamics and the first to elucidate the principles of the convection offluids and the circulation of ocean

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学英语单词
advs
alfred alistair cookes
alternating current selection
amphisapropel
aneurysm of carotid artery
anterior articular process
astern manoeuvring valve
auto-capacity
automatic conversion
black guillemots
black streaking
brachystachya
calender gauge
carotid atherosclerosis
carry-on baggage
centre porosity
cevine
chesteyns
chinese rose flower?
Clark County
cognet
complaint and claim
concrete shaft lining
coronetted
damnedest
dished pellet
distribution warehouse
dynamic transfer function
EAQ
El Coquillo
Esarhaddon
Faraday bag
fibergastrointestinalscope
fit curve
French-heeled
genus Salpinctes
glovesman
Google Zeitgeist
gravity seed cleaner
Greene, Nathanael
grid technique
handling problem
hare's fur
hauteur
hierarchy of subnet
historical resurrection model
host node
hotfixes
hypoimmunoglobulinemia
in your tracks
interia type starter
interlockings
know no boundaries
kumalo
kyano
late-career
laundry and hot shower effluents
liable jointly and severally
Ligularia alpigena
made shift
marine power resource
maximum convexity migration
Minnesota State University
mixed up
nail pulling
offer subject to goods being unsold
oil bowl
ootus
Oreticyl
osteosclerotic bone tuberculosis
Ottsjön
outside sill
pasado
patoulidous
pecuniary condition
pendent light
poolishes
purple apricots
reconvert
Retusotriletes
safety provision
scabrotrophon chunfui
show one's band
slit-lamp microscope
spacing parameter
splay brick
sterilisation
sulcus for subclavian artery
sumpture
swiveling propeller
tambourine
the operative word
thermal cracking gas chromatography
thickly settled
transient saliency
traveled distance
Triodanis perfoliata
vertebral artery type of cervical spondylosis
visual fire control
visual identification of pipe line
weighing rain-gage
Your trumpeter's dead!