【每日阅读训练第四期——速度越障2系列】【2-16】科技

isa0709

越障  9.48
MI   particle decay---neutrino mysterious
radioactive decay of atomic nuclei
Scientist hope to unravel the mysterious how    atmoc,thus can explain human and  planet exist all.
They form a internationally collaboration consist of expert of four famous university or organization.
EXO-200 experiment
Neutrino-proton----antineutrinos emmtted----Neutrino is its own antineutrino---they cancel each other
If the process is true ,scientist have to revise the basic prinple.
Big Bang of universe---antimatter---human exist
(They proceed an experiment, to ^^^^,they burid up the ^^underground, excepting to the result.
In the experiment to find half-????,they finding no signal after 7-months-data, so they rule out neutrinoless, shorter than 10???years.)
No netruino -----shorter than 10???
This research contradict another earlier claim:decay occur
EXO-200 will continue.

sb1119

1:40
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7：43


越障关于质子 中子  原子  反微粒神马的云里雾里。。。
why there is more matter than antimatter
o-called neutrinoless double beta decay，two neutrons in an unstable atomic nucleus turn into two protons
但是 two neutrons could also decay into two protons by emitting two electrons without producing any antineutrinos
the two neutrinos that are produced in a neutrinoless double beta decay must somehow cancel each other out. For that to happen, physicists say, a neutrino must be its own antiparticle    
The fact that the neutrino can be its own antiparticle might have played a key role in tipping that balance.

In a normal double beta decay, half of a given sample would decay after 1021 years

clover928

1:35
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1:35
(omg...疯狂走神。。。)
~
7:19
1.    the discovery will help to solve the mystery---why human, planet ... exist.
2.    the E-200 experiment..
3.    in a normal B decay, 2 neutrino- 2 electron+anti...=2 proton
in a new B decay ,   2 neutrino-2 electron+0anti = 2 proton
4.    The process implies 2 ....
*cosmology
*origin of matter
5.in the big bang.... a balance...
*neutrino plays a key role in the balance
6.in E-200, X-136 won’t lead to B decay
7.HOWEVER, this process is rare.
8.one of the goals: measure half-life neutrino with less process
9.E-200 proves that previous results were not valid.
*This experiment will continue in the future.
10.E-200 is done by a group of institutions.

单身学文

2’09”
1’08”
1’37”
1’19”
2’05”

5’47”

lyhdnangel

1'15
1'04
1'11
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1'40

4'11

wensd1111

1 A 01:16
2 A 01:25
3 A 01:23
4 A 01:39
5 A 01:36
6 A 01:17
7 A 05:31
1. the foundmental of our geophysic world will be make clear by a serious experiment x.
2. what the x consist of
3. what x used of, discouver the propotion of the basic particles
4. if the result was proved the later process will be put into practise,a hypothesis
5.the supportor and the member of the experiment.

JennyF

1’58
SITT1 is a protein that can affect longevity and might affect the live clock. But the hypothesis has not been proved yet. The study find that the more sirt1 in a mice, the longer live clock.
1’36
The researchers find out the older mice toward 24 hrs clock, and they want to know that the weather aging leads to sirt1 decline to lead to the result.
To find out, the older mice spend more days to adjust the new clock. That means at least
1’30
Super volcano evolves faster than we thought.
Even Yellowstone don’t have magma chambers beneath, doesn’t mean it wont have eruption in hundreds years or thousands years. We’d better know about this fact.
Another evidence…

1’35
Once quartz forms, the pressure of gas --- magma eruption.
How long it takes to form magma from XXXX
Less than 10,000 years, more like 300-500 years.
One question: how the eruption/ magma/ quartz originally form?

1’42
How the mosquito survives from raindrop? About the detail.. don’t get it.
It is important to design some new small fly robot.
It is impossible to hurt mosquitoes…


越障明天补呀呀呀。。。

abjure

1:52
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7:13

raise one experiment which has been study.  

研究一个n物质的衰变， 有几种可能性。
第一种连个N  create 两个电子。
还有一种N create anit-N.

这个东西和宇宙学里面反物质理论相同（即对应的反物质和正物质一样多）， 同时这个实验成立的话，
standard 理论就要修改。

实验搞了几个月没有发现什么东西，所以衰变方法没用。
又用另外一种方法来test。
最后提到这个实验得到了N多机构的合作和赞助。

假如钱给我多好呢。