【Native Speaker每日综合训练—35系列】【35-10】科技

cherry6891

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Part I: Speaker

Broadcast TV Streamer Aereo Fights For Legal Life

You don’t own a TV, yet you still want to watch The Good Wife and Dancing with the Stars live. Or you have a TV, but no cable and no antenna access to local channels. The solution could be the streaming video service from the company Aereo. It sends over-the-air channels to anything from your smartphone to your TV monitor.

Well, that’s if the broadcasters suing Aereo don’t put the company out of business by the end of the month.

Aereo’s existence hinges on an April 22 Supreme Court hearing, when the justices will decide whether the company’s service violates copyright law. Aereo argues it lets people watch and record broadcast TV via a cloud-based antenna and DVR for their own personal use. Broadcasters counter that Aereo is using their content without paying the retransmission fees that cable and satellite providers do.

Although Aereo operates in 13 U.S. cities, lower courts have shut the company out of several western states, including California. And whether you have Aereo or not, you still can’t watch the Supreme Court hearing—the justices still don’t allow their proceedings to be televised.

source：
http://www.scientificamerican.com/podcast/episode/tv-streamer-aereo-scotus/


[Rephrase 1, 1:16]

cherry6891

Part II: Speed

article2

Earth-sized planet found in star’s habitable zone

time2
Earth, meet your distant cousin. The Kepler space telescope has turned up a potentially water-bearing world nearly as small as our planet. The planet is the smallest one found in any star’s habitable zone, a temperate region surrounding a star that is suitable for liquid water.

Elisa Quintana, an astronomer at the NASA Ames Research Center in Moffett Field, Calif., and colleagues discovered the planet, Kepler-186f, in data from the first three years of Kepler’s mission. The planet is 10 percent larger than Earth and orbits a type of star called an M dwarf, a red star that is smaller, cooler and fainter than the sun. The planet circles the star Kepler-186 once every 130 days in an orbit slightly smaller than Mercury’s. The star, which is 490 light-years away in the Cygnus constellation, also hosts four other roughly Earth-sized planets. Previously discovered by Kepler, the other planets are much closer to the star, whipping around in as little as 3.9 days. Each of the planets was found using the tiny dips in starlight it creates when it passes in front of, or transits, Kepler-186.

“M dwarfs are now becoming everybody’s darlings,” says Jill Tarter, former director of the Center for SETI Research in Mountain View, Calif.  “They’re the low-hanging fruit.” Potentially habitable planets are easier to find around M stars because the habitable zones are relatively close to the cool stars. Close planets are easier to detect because they are more likely to transit their stars than more distant ones.

M stars are also the most common type of star in the Milky Way, making up roughly three-quarters of known stars. “If we find that Earth-sized planets around habitable zones of M stars are common,” says coauthor Thomas Barclay, also a NASA Ames astronomer, “that means they’re common throughout the galaxy.”

However, he adds, “Just because it’s in the habitable zone doesn’t mean it’s habitable.”  Since the planet orbits a faint star a long way from Earth, follow-up observations will be difficult. Without examining the planet’s atmosphere — or even knowing whether it has one — researchers can’t be certain that liquid water exists on the surface. [390]

time3
Even if the planet has liquid water, it may not be suitable to life. Some M stars are prone to violent flares of ultraviolet and X-ray radiation. And planets orbiting within an M star’s habitable zone may orbit so closely that one side eternally faces its star, generating extremes of climate. However, Kepler-186f has some advantages, Barclay says. Its sun is relatively quiet for an M star, and the planet orbits far enough away that it may escape the brunt of any flares. The planet’s distance might also keep it rotating and help it circulate heat around the planet.

While a flare might wipe out emerging life or strip a planet of its atmosphere, the fluctuating environment around an M star could instead provide some benefits. “Change can be catastrophic,” says Margaret Turnbull, an astrobiologist at the Global Science Institute in Antigo, Wis., but it can also be “inspirational for life.” Earth’s cataclysmic collisions with comets and asteroids, for instance, not only triggered mass extinctions but also opened up new niches for life to flourish.

Despite long odds for life, Tarter says early news of the discovery prompted SETI scientists to undertake a two-week search for radio transmissions from around Kepler-186, in the faint hope of listening in on an alien civilization. “It caught our attention,” she says. The search came up empty-handed.

If Kepler-186f is home to life, it would live in an environment completely foreign to Earth. M dwarfs emit mostly red and infrared light. On Earth, plants harvest higher-energy wavelengths of light for photosynthesis. However, some cyanobacteria perform photosynthesis with light slightly redder than visible light.

While follow-up observations are difficult for the distant planets found by Kepler, Barclay says, the telescope’s data will help engineers design next-generation space telescopes and know where to point them. The Transiting Exoplanet Survey Satellite, scheduled to launch in 2017, will look for planets around the M stars closest to Earth.

The James Webb Space Telescope, due to launch a year later, will examine the atmospheres of many of those nearby planets. “There’s no reason that we couldn’t be surrounded,” Turnbull says, by planet-bearing stars resembling Kepler-186. [376]

Source:
https://www.sciencenews.org/article/earth-sized-planet-found-star%E2%80%99s-habitable-zone?mode=topic&context=36

article3

How a chimp goes mattress hunting

time4   
The study
One of the more unusual traits apes share is that we sleep on beds. For apes other than humans, this means building a sleeping platform or nest every night. Young apes learn these skills from their moms and start making their own nests after they’re weaned. To make these thick and springy mattresses, the animals bend and break stiff, strong branches and interweave them.

David R. Samson of the University of Nevada, Las Vegas and Kevin D. Hunt of Indiana University in Bloomington surveyed 1,844 chimpanzee nests in Uganda’s Toro-Semliki Wildlife Reserve to find out what trees the animals were using to make their nests. They also surveyed the forest to see which species of trees were most abundant. And they measured the tree branches for properties such as strength and leaf surface area. The results of their study were published April 16 in PLOS ONE.

Of the nests investigated, 73.6 percent were made with ironwood, a species that made up only 9.6 percent of trees in the researchers’ forest transects. Ironwood was the stiffest and most stress-resistant of all the tree species tested.

“Chimpanzees select species of trees that possess physical properties that result in nests that are sturdy and resilient, optimizing comfort and reducing the risk of falls,” the researchers write.

The ironwood also probably provides a good deal of comfort, as its branches have a great density of small leaves. The thicker foliage also provides insulation. And the tree may indeed have insect-repellent properties, the researchers write.

The chimps learn to favor these particular trees — and the basketweave technique — by watching their moms. No annoying mattress salesmen, confusing fliers or annoying store jingles required. [286]

source:
https://www.sciencenews.org/search?st=How+a+chimp+goes+mattress+hunting

article4

Your Internet security relies on a few volunteers

time5
Their labor of love is OpenSSL, a free program that secures a lot of online communication. And it was a tiny coding slip-up two years ago that caused the Heartbleed bug, a hole that allows attackers to peer into computers. The bug forced emergency changes last week at major websites like Facebook (FB, Fortune 500), Google (GOOG, Fortune 500) and Yahoo(YHOO, Fortune 500).

But security experts say OpenSSL is severely underfunded, understaffed and largely ignored.

The bug wasn't caught until recently, because the OpenSSL Software Foundation doesn't have the resources to properly check every change to the software, which is now nearlyhalf a million lines of code long. And yet that program guards a vast portion of our commerce and government -- including weapon systems and smartphones, the foundation claims.

Related story: Heartbleed Bug explained
"The mystery is not that a few overworked volunteers missed this bug; the mystery is why it hasn't happened more often," Steve Marquess, the foundation's president, said in an open letter.

When weighed against its critical importance to Internet security, OpenSSL has a shoestring budget. It has never received more than $1 million a year, Marquess said. The only federal support listed online was a single $20,000 renewal contract from the Department of Defense.

While the foundation receives money from the Department of Homeland Security, Citrix(CTXS) and others, the vast majority of its funding is from specific work-for-hire contracts. A company wants a certain feature added here, a specific function there. It keeps developers busy. But Marquess said there's no money going toward reviewing the code or performing audits.

In fact, the only person working on this full-time is Stephen Henson, an extremely private mathematician living in England who referred to Marquess for comment. Only a handful of other developers pitch in with any consistency, and Marquess told CNN their total labor amounts to maybe two full-time workers.

Even in the aftermath of Heartbleed, the foundation has received only $9,000 -- sparking Marquess to publicly call out companies that use OpenSSL for free.
"I'm looking at you, Fortune 1000 companies," he wrote.
In the wake of Heartbleed, this lack of funding for OpenSSL may prove a wake-up call.[363]

time6
Startups and major corporations frequently use open-source software because it's freely distributed and costs nothing. But they rarely contribute back in dollars or donated time. Without significant outside help -- donating dedicated staff and money without strings attached -- open-source projects like this are at risk of fizzling out or blowing up in our faces, said Azorian Cyber Security founder Charles Tendell.

"If you bought your car and knew it was put together by volunteers, how would you feel about that?" Tendell asked.
A select few firms provide some help. Facebook and Microsoft sponsor bug bounties via the HackerOne program -- essentially paying hackers to find mistakes that need fixing. And it was a Google security researcher, Neel Mehta, who discovered the Heartbleed bug.

Others are convinced it's time to chip in. The initial response by Marc Gaffan, cofounder of cloud-security provider Incapsula, was: "What do you expect? You got this for free. You get what you pay for." But it turns out his company relies on OpenSSL too. When asked if he would lead by example, Gaffan promised his firm would make its first donation.

Related story: Post-Heartbleed, change these passwords now
This recent scare has gotten the White House's attention. The Obama administration is now "taking a hard look at widely used tools such as OpenSSL to see if there is more that the federal government needs to do -- including supporting research and development," said National Security Council spokeswoman Laura Lucas Magnuson.

There's a catch, however. The government can only get so close without triggering fears that it's actually undermining the security of online communications, especially after Edward Snowden's disclosures about the National Security Agency's extensive surveillance programs. Former NSA crypto engineer Randy Sabett, now a tech privacy attorney at the Cooley law firm, expects the open-source community will be apprehensive.

"The public does not want the government involved in the design of the commercial Internet," he said. "They don't want back doors put in." [328]

Souce:
http://money.cnn.com/2014/04/18/technology/security/heartbleed-volunteers/index.html

cherry6891

Part  III: obstacle

The guns that know who is firing them: Can smart tech make firearms safer?

(CNN) -- As a teenager, Omer Kiyani was shot in the face with an unsecured firearm. He still struggles with the trauma. But the Detroit engineer now believes he has created a device that would have saved him and may save thousands of others.

He calls it "Identilock," and while it still needs final adjustments to the prototype and further investment, Kiyani expects to launch his smart gun technology in U.S. stores within a year, retailing for around $300.

The device attaches to the trigger of a handgun, which can then only be unlocked by biometric authentication, preventing any unauthorized user from firing the weapon.

Drawing on breakthroughs in mobile technology, the trigger is released by similar fingerprint sensors to those used in Apple's iPhone 5S. Those sensors are approved by the FBI, and widely found in security scanners.

"The key is reliability," says Kiyani. "The sensor has proved itself in different sectors over the past few years and the market is aware of its capability."

The gun is enabled in under a second from first contact, and engineers are chipping away to further reduce the time. Eventually, it is hoped the lock will be integrated and the release will be instant.

"The main point of firearms ownership is home defense, and home defense means quick access," says Kiyani. "But the other side of that is accidents."
The inventor believes his experience indicates an urgent and avoidable crisis and the statistics support him.According to the Centers for Disease Control and Prevention, in 2010, 62 children aged one to 14 were killed in firearm accidents in the United States, and 785 from 1999 to 2010 -- far higher death tolls than school shootings over the same period.

Kiyani is not interested in politics and keeps his vision simple. "I'm a gun victim, a gun owner, and I have children. I came up with something that fits my needs.

"I was working as a safety engineer for airbag calibration, and it didn't make sense that there was something so simple that had such an impact on safety, but not for guns. In essence, this is a product of that question."

Surge of innovation
Even if all goes to plan, Kiyani's will not be the first smart gun system to hit the U.S. market. In February, German firm Armatix launched its iP1 pistol that uses a radio frequency identification (RFID) chip activated by the owner's watch, and the competition is growing.

Directives from the White House to promote development of safety technology in the wake of school shootings have led to a surge of innovation. There is now an increased appetite and funding for a field that had stalled since the earlier designs in the 1970s. The boldest statement is an open challenge from The Smart Tech Foundation. It was created by Silicon Valley angel investor Ron Conway and serial entrepreneur Jim Pitkow in response to the Sandy Hook shootings and is making $1 million in prizes available for development of the best ideas.

The Foundation claims to have received over 200 entrants after the first month of the submission period, everything from concept stage to working prototype. Designs include electronic ammunition, remote controls and RFID chips buried in the owner's skin.

Researchers at the New Jersey Institute of Technology(NJIT) have been developing biometric designs since 1999. The leader of that program, Donald Sebastian, has seen many false dawns but is more confident than ever.

"The difference now to a decade ago is that there are more types of technology and they are all much better. Biometric technology failed one time out of four then, now we aim for one in 10,000 failure rates", says Sebastian. "The reliability of the safety needs to exceed that of the underlying firing mechanism, so there is never a discussion that the gun wouldn't work because of the technology."

'Production ready'
Sebastian's view is borne out by 2013 research into gun safetytechnology from the National Institute of Justice (NIJ). The report tested reliability in a range of RFID and biometric designs against existing firearms, and gave several ratings of "Advanced Prototype or Production-Ready." "It is only recently that viable product designs have reached a commercializable or production-ready level of maturity," the report stated.

NJIT remains at the vanguard, working with "Dynamic Grip Recognition," perhaps the most ambitious system in development. The design uses a battery of sensors to build a "movie" of the user, learning the size and weight of their grip, and even their tics and manner with the gun to be sure of authorizing the correct user.

As sensor technology continues to improve, the scope for progress is exponential, says Sebastian. A new prototype will be unveiled in June, promising to improve speed and accuracy, using an enhanced microprocessor that draws less power and needs less space.

This design is the result of collaboration with military partners Picatinny Arsenal in New Jersey. Beyond their technical expertise, Sebastian recognizes what military involvement could do for public acceptance ahead of a commercial launch and manufacturing.

"The technology we have developed is primarily for the civilian population, but to gain traction in those communities it needs to be used and endorsed by icons of gun ownership such as police and military," says Sebastian.

With the phenomenon of "Green on Blue" attacks in Afghanistan (supposed allies carried out dozens of attacks on Coalition forces in 2012) there is mutual interest, says security technologist Kevin G. Coleman: "Re-use of soldier's weapons is a hot issue and the army are concerned. But taking responsibility if (smart technology) goes wrong is a massive step. I could imagine use in non-critical settings in the near-term future -- the next three to five years -- and then a long period to see if people are comfortable with it."

Opposition
The size of the civilian market is unclear. NJIT research found that 72% of New Jersey gun owners supported the development of smart technology, and that parents could be a fruitful market.

But a recent poll from the National Shooting Sports Foundation found that just 14% of Americans are likely to buy a smart gun, and the majority believe they are unreliable. Many gun rights advocates are hostile to the concept, arguing it is a ploy for gun control and is against the Second Amendment. Some gun advocates also argue that the electronics could be hacked by criminals. Opposition to Armatix's launch has reportedly been strong enough that it forced the vendor to withdraw its products. The California store which announced it would be selling Armatix products swiftly distanced itself from them following a severe backlash from gun rights activists.

The major gun manufacturers have also been wary. Sebastian works with major gun manufacturers and believes their reluctance stems partly from fears that once the first smart guns are established, the technology will become mandatory. He sympathizes: "It would be better if the transformation came through market demand rather than regulatory pressure."

Such fears may be justified. In 2002, New Jersey became the first U.S. state to legislate that new guns must be personalized within three years of the technology becoming available. The idea is also gaining currency across Europe.

Should such mandates be enacted, or if the new designs find a strong market, the drip-drip of smart gun innovation may well become a flood. [1220]

Source:
http://edition.cnn.com/2014/03/26/tech/innovation/smart-guns-know-whos-firing/index.html?iid=article_sidebar

菜农人民

今天是沙发哎！虽然是我最头痛的科技文，但是也要好好读！！！

speaker:  the streaming video service could send over the air channels to anything from your smartphone to your TV monitor.justices will decide whether the company’s service violates copyright law.

Time2 3:15
Using the Kepler space telescope, astronomer has found a Earth-liked planet in the habitable zone where may exists liquid water.the author introduced the location in the universe of the M dwarfs.But they have not been sure that whether liquid water exists on the surface.

Time3 3:28
even though there was liquid water there may have some reasons which deter from existence of life. but on the other hand,While a flare might wipe out emerging life or strip a planet of its atmosphere, the fluctuating environment around an M star could instead provide some benefits. Astronomers tried to detected if there was alien-life,they plan also to launch a survey satellite for finding out planets around the M stars closest to Earth.

Time4 1:58
like humain being, apes also make their own nests to sleep everynight. DSR surveyed nests and published his study that apes prefer to chose the ironwood to build their nests, he also gave us some reasons.

Time5 2:40
the heartbleed bug exists in OpenSSL which is widely used by website. the explanation of the bug and people who found the bug does not have enough money.....

Time6 2:50
hackers who are chosen by some software firms will be paied...the bug heartbleed got the White House attention, the Obama's adminisrtation wants to support founding for the internet security but the public don't want the government involved in the design of commercial Internet.

Obstacle 7:55
汉语回忆吧，首先说了误伤事件，然后说枪支需要高科技公司来使它们更安全。提出了有投资者投资募集观点，介绍了几个观点貌似。这个生产已经要进行了，但是也存在一些反对声音。。。（差不多就懂了这些····）
整理生词去啦····

sherlock1992

M. & Thx, cherry.

2'39"
2'34"

小蘑菇开始打怪

真早~~~占座~~~
------------
谢谢楼主！！今天敲了好多字啊啊啊。。

speaker:

if you don't have a TV but you still want to watch programs, you can use the service provided by Aereo

the company is sued because it oppose to the copyright but the company said it do not charge any fee from its customers

all the customers just watch the programs they like through the service

some states have banned the use of Aereo

time2:2:06

scientists have found a star which is very similar to Earth in the galaxy

some information about the star, how long it takes to run a circle

the scientists need to analyze whether the star is common in the galaxy, however the research is difficult and need more work to be done

time3:2:04

scientists need to know whether water exists on the star and the atmosphere of the star is suitable for life to live

however some scientists say that the extreme climate condition could provide some chance for life to emerge

some analysis about the radio needs to be done

a new space telescope is going to be launch and the new device will help scientists find more information about the star and know more about the galaxy

time4:1:25

as human beings sleep on beds, apes can also sleep on mattress

apes learn the skill os making mattress through the observation of their moms

scientist found that apes are more likely to use ironwood to make their mattresses

ironwood was the stiffest and most stress- resistant of all the tree species tested

the beds apes make can prevent them from falling from the tree and provide a good place for insulation

time5:1:51

the security of the Internet is assured by a voluntary group

a bug called heartbleed emerged recently,  a hole that allows attackers to peer into computers

the group gets little revenue every year, the group only have two full-time workers

until now, the foundation has received only $9000, the speaker of the group hopes more companies could realize the problem and provide some financial support to them

time6:1:55

a lot of companies get free service from the Internet but they rarely contribute back in dollars or donated time, only several companies are aware that they need to put some attention on the Internet security

because the bug, our private information are exposed to the hackers

the Obama government said it need to do something which include supporting research and development

however the voluntary group does not want the government get involved in the design of the commercial Internet

time7:6:19

Kiyani who is a victim from an unsecured firearm created a device that would have saved him and may save thousand of others

the device attaches to the trigger of a handgun, which can then only be unlocked by biometric authentication, preventing any unauthorized user from firing the weapon

with the development of high technology, the device can be applied into practice even though the company has failed for many times during the last several years

the production is already and if the government approve the sale of the product, the company could provide the products to citizens

according to a survey of people, some citizens said that they are interested in the products however there are some people believe the devices are unreliable

the company said that it would be better if the transformation came through market demand rather than regulatory pressure, so the device would have a more promising market

the future of the device or the design still needs time to check

疏离无罪

今天好早~~~~~~~~~~~

Speaker:Aereo send over-the-air channels to its customers.But recently Aereo was sued by Broadcasters for its violation of copyright law.Broadcaster thinks that the tech used by Aereo belongs to its patent.

01:43
Recently the Kepler space telescope has discoverd an earth-sized planet in star's habitable zone.But locating in habitable zone does not mean this planet is habtiable.

01:54
The Kepler 186 has both shortcomes and benefits for a suitable enviornment to life.Despite the long odds for life,it will be a totally foreign environment to Earth.There may be more similar planet around us.

01:21
A new study about the apes' mattress finds out that ironwood is the main material that be used to make a mattrss.Ironwood has many advantages. 这个研究可以更无聊点么

02:03
The recent heartbleed bug in OpenSSL system has caused millions of loss to many companies.But the OpenSSL fundation received only a little money and budget every year to run iteself.Such an important fundation has been ignored for long time.

01:31
Small companies and starups usually use open-sourc softwares,because they are free.But they do not donate money to the developer and the safety can not be kept.US government has put their eyes on this issue.But the public do not want governemt to enter commerical internet.

06:31
Main Idea: Smart guns
A new tech called Identilock was developed recently to prevent any unauthorized users from firing the weapon.This tech can make the weapon unlocked only by biometricauthentication.
Developer are trying to make this device unlock much quicker now.
The company is facing competition at the same time.A German company released a similar product recently.And more attention and investment are out on this safety tech area.
This device are ready to produce and sell now.
But the poll shows although more people in NJ are welcomed to this device,poll from National Shooting Sports Foundation shows that most americans do not think this is a good divcie and thnk it is no reliable.

irvan

嘿~占个首页~好久不跟了

Speaker
It introduces a new form of TV, by using smartphones. But this plan has been cancelled.

Obstacle
Time: 08:02
Main idea: smart technology in guns
Structure:
              1) Introduction to this technology
                   --- Identilock, which means that guns can only be unlocked by biometric authentication, preventing any unauthorized user from firing the weapon.
              2) Surge of innovation
                   --- The competition in smart guns is growing.
              3) 'Production ready'
                   --- The technology is primarily for the civilian population, but to gain traction in those communities it needs to be used and endorsed by icons of gun ownership such as police and military.
              4) Opposition
                   --- Smart guns  are a ploy for gun control and is against the Second Amendment and the electronics could be hacked by criminals.                                

wangweiyi5332

占个首页就好像上课占前排一样，有占前排的学习热情，自然学的更认真。。哈哈。。加油！！
Speaker  ： whether you have a Tv or not , you still can watch the Tv program via the streaming video services provided by the Aereo company . But that's if the Broadcast suing Aereo don't put the Aereo out of business by the end of this month. Aereo argued that they provide people to watch Tvs via the technology of the Cloud-debase and DVR for their personal uses ,whereas Broadcast counterred that the Aereo used their content without paying retransmission fees like the cable or satellite providers do.  Aereo's existence hinges on the court results that whether the Aereo violates the copyright laws. Although Aereo operates in 13 US cites ,it has been shut at several cities by the lower court.
Timer2 3:39
a planet that resembles Earth and may have liquid water has been discovered .The   team found that it orbits around the M dwarf ,smaller and cooler that the sun. The scientists expressed that  planet like this one may be common if .... and that they still need to test the atmosphere around it in order to prove the possible existence of water.
Timer3 4:26
The environment of M may be difficult for people to live ,for the extreme climate  caused by the flare of the burning planets . But this burning obits may obit out of the M . something may cause the catastrophic and also inspire life. the light may not fit for the life. new telescope will be designed.
额。。读的好慢。。希望一个月后自己能有突破，分数爆到750 。。去睡觉了。。额。。今天学习劲头还是好的，，学的挺好的。。额 加油！！明天6点30 起床，等运动鞋到了后就5点起床去跑步。。
Timer4 2:34
there are many differences between apes and human ,however the biggest one is that we sleep on bed. Apes also need to build their own nest. A research focus on which species does the apes prefer to build their nests .the results is ironwood. Apes learn building nest by watching their moms.
Timer5 2:43
our internet security rely on several internet volunteers.
the bug happens less frequently in the net. and the department receive less fiscal funding.  there is only two full time workers. the short of funding may be a wake-up call for the world.
Timer6 2:30
Startups and major corporations frequently use open-source software because it's freely distributed and costs nothing.  But rarely do they pay any donation. the appeals have been made to donate or pay for the Open-SSL service . the US government also expressed to do something to help, while at the same time government also feared that they put themselves in an embarrassed situation since S disclosed their monitor program.
Timer7 9:19
the victim has designed a new smart gun,this type of gun may saved many children in US.
the innovation of gun surged a long time before.and many people fund the program to support new designs.
this new gun may produced commercially and may also be used in commerce and government .
some advocates support it ,while some opposed that this new design violates the Second Amendment.  

hysteries

还有首页！
---------------------------
【Speaker】
If you don;t have a TV or you have a TV with no cable, company Aero can help you out with it's steaming video service.
【Speed】

time 6        00:01:36.16        00:07:50.77
time 4        00:01:17.41        00:04:30.04
time 3        00:01:36.41        00:03:12.62
time 2        00:01:36.20        00:01:36.20
【Obstacle】
00:06:02.98

Considering the accidents caused by guns misused by children and teenagers, a new technology called identilock has been promoted to lock the guns        .
The device attaches to the trigger of the gun which can smartly identify the unauthorited users.
Actually, the innovation of this kind of devices has surged in many countries such as Germany.
But still, there are a few people doubting the reliability of the smart tech, only 14% of Americans are willing to have this new tech since they believes that the identifying system may be hecked.