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This is Scientific American's 60 Second Science. I'm Steve Mirsky, got a minute? The Meridiana Planum region of Mars once had water that was really soft and highly acidic, conditions in incredibly hostile to any life forms that we know about. So any

发表于:2018-12-24 / 阅读(201) / 评论(0) 分类 Scientific American(二)月

Hungry Lasagna So you made lasagna last night, and it was delicious. You saved the leftovers by wrapping aluminum foil over the top of the pan, and putting it in the fridge. When you get hungry today, you go to look for that lasagna, but it looks lik

发表于:2018-12-31 / 阅读(142) / 评论(0) 分类 英语听力文摘 English Digest

Fish raised in the more acidic seawater that would result from higher carbon dioxide levels forget to flee predators. More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the grow

发表于:2019-01-02 / 阅读(128) / 评论(0) 分类 60秒科学

More carbon dioxide emissions lead to more CO2 dissolving in the oceans, which turns the water acidic. Those sour seas slow the growth of corals. And it turns out acidic seawater also makes clownfish and damselfish suicidally bold and reckless, accor

发表于:2019-01-08 / 阅读(151) / 评论(0) 分类 Scientific American(七)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(216) / 评论(0) 分类 Scientific American(四)月

This is Scientific American 60 second Science, I am Sophie Bushwick, got a minute~ Theyre called hydogels: Jell-O-like materials made of networks of long-chain molecules in water. And theyre as flexible as living tissue. But hydrogels could not recov

发表于:2019-01-08 / 阅读(212) / 评论(0) 分类 Scientific American(三)月

如果你爱喝葡萄酒或经常遇到要喝葡萄酒的场合,学几句高大上的品酒英语尤其重要。 品葡萄酒本节课的重点词汇: 1) wine tasting 葡萄酒品酒会2) tasting flight 品酒序列3) Cabernet Sauvignon 赤霞珠4)

发表于:2019-01-22 / 阅读(156) / 评论(0) 分类 美国文化脱口秀

This week on Why Tell Me Why, we are finding out why the oceans are so salty. So the oceans are salty because the oceans have been around, lets say, for over five hundred million years. And over the course of time what we found out is that weve alway

发表于:2019-01-22 / 阅读(167) / 评论(0) 分类 自然百科2009年

Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y

发表于:2019-01-30 / 阅读(269) / 评论(0) 分类 60秒科学

Don comes up with another entrepreneurial venture, but Yael straightens him out just in time. [Thunder] Y: What are you doing outside, Don? It's about to rain. D: I'm setting up bottles. Y: I can see that. But why? D: For my new business venture: bot

发表于:2019-03-06 / 阅读(242) / 评论(0) 分类 英语时差8,16

Acid Water Yal: What are you doing outside, Don? It's about to rain. Don: I'm setting out bottles. Y: I can see that. But why? D: For my new business venture. Bottled rainwater! Y: As in living plastic bottles out in the rain and then selling them as

发表于:2019-03-09 / 阅读(369) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
adephagid type
alkylpurine
anodic deposit
atomic clock
bah
bank line
beat group
bedfellow
bio-security
block design
boundable
Butocine
carcrime
cellulous
central moment
Chistye-Prudy
ciaras
come to that
come under someone's notice
Corydalis fedtschenkoana
cosmic radio burst
cost of goods on hand
coupler link
cylinders and multiple table
dark-side hacker
dibp
diethylcarbamazine citrate
dockland
done and dusted
editec
Eisenopal
espoused
family haloragaceaes
fitzgerald trait
forage fishes
four-party
frequency generator frequency doubler
FTBD
geologic thermometry
gestations
Harriet Tubman
hematoxylin-eosin stain
hepatocholedchus
hicklety-picklety
highly flexible clutch coupling
homogeneous matter
intermediate-acting
jequetepeque
K.C.B.
Kobus
landed with
left-right
Lepotex
life-preserver
linear-type concrete hinge-bearing
local controller (first-level controller)
marcia funebre
market reconsolidation
microaesthete
middle cerebellar peduncles
new-generation
nozzle flow meter
onchocercal
passionflower
pellet implantation
picture-in-(a-)picture
pipefriction
placeabilities
plantator
Pliny
portability of program
price wars
process (in a data processing system)
program evaluation and review techniques chart
puss-in-boots
quarter-round molding
queen of the night
radioactivity analysis
rapid circulation
reducing joint
relief deformation
resonance-energy neutron group
rheem
run on wheels
Saléye
sealed fuel pump
sexwar
single-serve
somredness
spectrum field
static offset
subaqueous trnnel
surface crystallization
telephone test
Tetrapora
tetrazenes
tool-using in animal
universal conductance fluctuations
uveoplasty
waterbarrow
What you lose on the swings you get back on the r
Zacatecoluca