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時間:2022-08-15 來源:本站 點擊:258次
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More than 5,000 planets confirmed to exist beyond solar system: NASA******

More than 5,000 planets have been found to exist beyond the solar system, a milestone for astronomy confirmed by NASA on Monday.

The 5,000-plus planets found so far include small, rocky worlds like Earth, gas giants many times larger than Jupiter, and "hot Jupiters" in scorchingly close orbits around their stars, according to NASA.

Those exoplanets have been confirmed using multiple detection methods or by analytical techniques.

According to NASA, powerful next-generation telescopes and their highly sensitive instruments, starting with the recently launched James Webb Space Telescope, will capture light from the atmospheres of exoplanets, reading which gases are present to potentially identify signs of habitable conditions.

"It's not just a number," said Jessie Christiansen, science lead for the archive and a research scientist with the NASA Exoplanet Science Institute at Caltech in Pasadena. "Each one of them is a new world, a brand-new planet. I get excited about every one because we don't know anything about them."

黑卡系列也出手机?索尼Xperia Pro******

    索尼Xperia Pro-I在今日正式发布,其实已在较早时间已经有媒体机交由部分人试用,由于目前只是工程机,只能拍摄机身及试用1英寸感光元件24mm镜头与16mm超广角镜试拍,但这也让大家能先睹为快1英寸CMOS手机的威力。 

金属坑纹边框极有质感

    索尼Xperia Pro-I设计上机面保留Xperia 1 III的6.5英寸21:9比例4K屏幕。边框经过重新设计,三间的金属坑纹边框极有质感,还加入旗舰机少有的3.5mm耳机孔,无需卡针等工具就能打开的卡槽,以及罕有的挂手绳位置。另外还有手感与轻便相机相似的快门键,以及切换收音效果的圆形键。指纹识别,与以住一样与开关键为一体设计。 

手机正面为6.5英寸21:9比例4K屏幕 

800万像素前置镜头 

金属坑纹边框极有质感 

3.5mm耳机插头 

手感与轻便相机相似的快门键 

无需工具打开的SIM卡槽 

SIM卡槽2支持Micro SD卡扩展 

现在手机较罕有的挂手绳位置

开关键与指纹识别融合 

    索尼Xperia Pro-I采用纯黑色的机背,只有加入索尼字样没有任何花巧贯彻了“Pro”的形象。三镜主相机设置于机背中间位置,正中间部份是1英寸感光元件的24mm Zeiss Tessar T* 镜头主摄,旁边设有麦克风,也支持3DiToF感应器,还有Zeiss蔡司的标志。 

索尼Xperia Pro-I纯黑色的机背

    由于这次测试是索尼Xperia Pro-I的工程机,只能试玩1英寸感光元件24mm镜头与16mm超广角镜的拍照功能。这次就集中让大家看看这应用改良版RX100 VII相机感光元件,还加入蔡司Tessar T* 玻璃非球面镜片镜头的威力。 

光圈可由 f/2.0 与 f/4.0 切换

    索尼Xperia Pro-I使用专业相机App拍摄,在主摄镜头的拍摄界面,加入f/2.0与f/4.0光圈切换的按键,一按就能秒速切换非常快速。拍摄人像与花卉,两者的背景,都可以看到景深有很大分别。以f/2.0光圈拍摄人像,人像会较为突出,但如拍摄花卉,则可将光圈收到f/4.0,让清晰的部份更多,看起来照片更加丰富。 

主摄镜头的拍摄界面加入f/2.0 与 f/4.0光圈切换的按键

拍摄人像时,较适合用f/2.0大光圈,微微散景可突出主体

f/4.0光圈整张照片大部份范围清晰

f/2.0光圈拍摄花卉

拍摄花卉不妨用f/4.0光圈,清晰度会更高

色彩自然,白平衡与测光准确

    索尼Xperia Pro-I照片也是由索尼微单相机部门所调制,输出的相片,与真实相机拍摄的相片质感十分接近,相片白平衡与测光准确,日光下将植物的色彩重现眼前。 

白平衡与测光准确

日光下将植物的色彩重现眼前

色彩层次感丰富

感光力高,ISO 640画质细致

这次拍摄较难找到一些暗光环境拍摄,刚好找到一卷水管,而水光中空的部份看起来极暗,试试用索尼Xperia Pro-I拍下这个的位置,竟然只用ISO 640完成,合焦的枯叶一丝丝的纤维都可纪录,而且也看不到噪点,画质极为细致。 

试拍摄一卷水管的暗部 

手机自动设置为0ISO 640完成,合焦的枯叶一丝丝的纤维都可纪录 

室内白平衡也很精准

    日阳与室内,都是经常用作拍摄,在室内拍摄一杯饮品,白平衡没有因带黄的灯光与深啡茶色,变到整张照片都带暖色,可忠实呈现物件应有的色彩。试在窗边拍摄人像,模特的肤色也十分自然,而且也可看到不少头发的细节,在手机来说已是顶级水平。

    室内拍摄一杯饮品,白平衝没有因带黄的灯光与深啡茶色,让整张照片都带暖色,可忠实呈现物件应有的色彩。

试在窗边拍摄人像,模特肤色十分自然,而且可看到不少的细节

    这次索尼还为想入手尼Xperia Pro-I的 Vloger带来Vlog套装,包括已在市面推出的GP-VPT2BT手柄以及Vlog外置屏幕。 

    Vlog外置屏幕为3.5英寸720P分辨率,只需通过USB-C连接手机, 就能利用手机供电使用,如使用外置电源也可用 USB-C连接电源,为手机进行充电。机身还带有连接外置麦克风插头,支持外接其他收音设备,应会比机身自带的麦克风有更清晰的收音效果。 

Vlog外置屏幕为3.5英寸720P解像度

通过USB-C to USB-C连接手机,利用手机供电使用

带有连接外置麦克风插口,可外接其他麦克风

    Vlog外置屏幕可利用磁力,连接手柄上手机夹背面的凹陷位置非常稳固,使用者即可从外置屏幕看到拍摄的取景,通过手柄上的操作键,进行拍摄与视频。

Vlog外置屏幕可利用磁力

连接手柄上手机夹背面的凹陷位置非常稳固

可从外置屏幕看到拍摄的取景

手柄可调整使用角度,方便自拍和视频

通过手柄上的操作键,进行拍照与视频

手柄可当一支短脚架使用

皮革保护套的皮革厚实,特意将角位加厚

   此外,这次索尼还将皮革保护套展出,皮套也采用纯黑色,皮革很厚实,还特意将角位加厚,可更好保护机身。

via:dcfever

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'Panic' in Britain as Omicron crisis bites ahead of Christmas******

AFP。

People wait in the observation after receiving a dose of the COVID-19 vaccine at a vaccination clinic set up at Chester Cathedral on December 16, as the UK steps up the country's booster drive to fight a "tidal wave" of Omicron.。

Soaring Omicron cases left Britons scrambling on Thursday to make alternative Christmas plans, faced with cancellations, long queues for vaccines and France shutting the border to UK visitors.。

Britain recorded a second consecutive record daily number of new COVID-19 infections at more than 88,000, but the government has so far stopped short of formal limits on socializing as it awaits further evidence of the severity and impact of the new Omicron variant.。

Last year, Christmas celebrations were drastically curtailed after the Alpha variant swept the country. Britons had hoped that this year would be different, but cases have again shot up since the Omicron strain of the virus first emerged.。

The UK government last week updated its guidance to advise people to work from home if they can, while mandating they must wear masks in some settings.。

But it has stopped short of recommending the cancellation of social gatherings such as Christmas parties, with embattled Prime Minister Boris Johnson instead recommending that people get booster vaccines, COVID-19 tests and act cautiously.。

Recent days have seen long lines outside vaccination centers in London and other towns and cities, as people heeded Johnson's call to get jabbed again.。

But at the same time, pubs, theaters and other entertainment venues have reported rising cancellations – and concerns about their viability – as the case numbers continue to climb.。

From the top down, people were changing plans. Queen Elizabeth II, 95, canceled her traditional pre-Christmas family lunch next week, despite Johnson insisting such gatherings could still go ahead.。

It was a similar tale of cancellations in pubs and restaurants.。

'Anxiety-provoking'

"We had some cancellations here," Patrick Mullighan, 64, owner of the White Hart pub in east London, told AFP.。

He said his chef had caught the virus, forcing the kitchen to close, while 25 bookings for this Sunday had dropped to 10.。

He estimated turnover could be down by around a quarter for the normally busy period in the run-up to Christmas and New Year.。

"It represents a lot of money but... as long as people are still buying drinks, that will be good. I'm always worried but what can we do? You've got to carry on."

In a bid to curb the spread of Omicron across the Channel, the French government announced it would ban non-essential travel to and from the UK from Saturday, for both unvaccinated and fully jabbed non-residents.。

The sudden announcement sparked anxiety and even panic among would-be travelers scrambling to cross the Channel in time for Christmas.。

"I have friends who are panicking," London-based Marie Geoffroy, 43, told AFP at St Pancras station as she prepared to board a Eurostar train.。

"It's anxiety-provoking, these last-minute changes, it makes you feel like you're being held hostage," she added.。

"I know lots of people who have been able to change their tickets because they can, but others can't afford it."

'Prioritize what matters'

In the run-up to the festive period, England's chief medical officer Chris Whitty urged people to "prioritize what really matters to them and then cut down on the things that don't."

"I wouldn't want to say to people they should do a particular thing," he told a panel of MPs, insisting the government and its advisers like him were united in their approach.。

"I think it really should be for people to make those choices."

Johnson has set a highly ambitious target of offering a third vaccine dose to all adults by the end of the month, requiring around a million jabs a day.。

陕西:中小学教资考试3月12日进行 各项安排目前无变化******

7日,陕西省教育考试院发布通知: 2022年上半年中小学教师资格考试笔试将于3月12日(本周六)举行。

西安教资考试目前按原安排进行

通知同时提到,陕西省出现散发疫情,为保障广大考生和涉考工作人员的健康安全,准考证打印3月9日开始,考生届时可登录中小学教师考试网(http://ntce.neea.edu.cn)自行下载并打印准考证。

同时,因西安市出现本土新冠肺炎确诊病例,多名考生打进华商报新闻热线029-88880000咨询西安市的相关安排。

华商报记者从西安市教育考试中心了解到,所有考试按省教育考试院安排进行。省教育考试院相关工作人员回复,目前按原计划进行,如有变动,将第一时间发布在官网上。

考生需遵照各类防疫要求

同时,省教育考试院特别提示:

1.鉴于近期散发疫情不确定性,考生考前须及时关注考区属地防疫要求,做好考前准备工作。

2.登录“陕西招生考试信息网”,仔细阅读《2022年上半年中小学教师资格考试笔试疫情防控公告》,按公告要求做好考试准备,下载并签订健康承诺书。

3.做好健康检测和个人防护。考前须每日进行身体健康状况监测,测量体温,如实记录个人健康信息。做好自我防护,注意个人卫生,戴口罩、勤洗手,非必要不外出、不聚集,不去人口密集场所,赴考途中要注意个人防护。

4.核对准考证信息。准考证上的“姓名”和“证件号码”信息与所持有效身份证件上不一致者,不得参加考试。请考生仔细核对准考证上的个人信息,如发现照片信息不全、姓名与身份证不相符等情况,及时持本人身份证到参考考区的考试机构更正。

5.按时参加考试。考生应至少提前1小时到达考点,进入考点时要保持安全距离,自觉出示健康码、行程码、48小时核酸检测阴性报告(纸质版、电子版均可)、接受体温检测,进行身份验证,首场考试上交健康承诺书。

6.遵守防疫要求。考试时配合工作人员进行各项防疫检查、身份验证和随身物品检查。

7.遵守考场规则。严禁携带手机等各种具有发送或者接收信息功能的设备进入考场座位。开考后无论是否使用,一律按作弊处理。

8.佩戴口罩参加考试。考生须自备一次性医用口罩或医用外科口罩,除身份核查外,考试期间全程规范佩戴口罩。

9.请考生自觉遵守《考场规则》,诚信考试。

因推迟打印准考证给考生带来的不便,敬请谅解!

华商报记者 付启梦


来源:华商网-华商报

编辑:方正

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