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2014年2月20日 星期四

念力操控直升機  僅重40克 練習兩周可掌握

蘋果日報

【本報訊】有否想過以念力移動東西?這並非天方夜談。去年在美國國際消費電子展(CES)亮相的念力直升機(Puzzlebox Orbit),以腦電波操控令人嘆為觀止;有關產品最近登陸香港。引入該高科技產品的公司指,美國對外銷高科技產品有一定限制,幾經商討才成功爭取在港發售,「念力直升機係非一般玩具,玩家可以藉此訓練念力、集中力」。
記者:蔡朗清

JC集團董事總經理莊天頌(Francis)在觀塘apm的JC Shop分店門外,試玩剛從美國引入本港的首款Puzzlebox Orbit念力直升機。記者現場所見,有關直升機外形與一般遙控直升機無異,體積細小,重40克,玩家需佩戴一個腦電波耳機,以念力向裝有收發器的直升機 發出訊號操作。

每部定價2,680元

只見Francis在頭上戴上腦電波耳機後,另將手機透過藍芽連接耳機後,從裝在手機的Orbit App觀察玩家的念力、集中力等達到甚麼程度。當Francis全神貫注想着起飛,手機屏幕上集中力趨升,直升機螺旋槳竟轉動起來;當達100%,直升機神奇地在他手上起飛,頓時嘩聲四起,吸引不少人圍觀。記者親自操控,卻因念力不足令直升機未能升上高空。Francis解釋,一般經過兩周的練習才能好好 掌握直升機升降,以及左右飛行。

Francis指,Orbit去年在美國國際消費電子展亮相後,公司一直留意該產品動向,去年底在美國開售後決定引入,他指「呢類高科技玩具喺香港好有巿 場,最大問題你搵唔搵到返嚟。好似呢部念力直升機,美國唔想將呢啲高科技產品輸出海外,特別係中國,幾經辛苦先搵到返嚟」。念力直升機每部定價2,680 元。

資料顯示,Puzzlebox總部設於美國三藩市,專注研發讀取腦電波訊息代碼內容,解讀後透過發送器傳送至其他裝置,應用於教學或娛樂項目 上。該公司計劃製作其他腦電波使用產品,如念力控制電視機的聲音。

念力直升機操作方法

1.頭部戴上腦電波耳機
2.利用手機預裝的Orbit App觀察玩家的念力、集中力程度
3.當集中力達100%,直升機便會起飛

中學自製「迷你版」3D打印機

文匯報

香港文匯報訊(記者 鄭伊莎)

3D打印(3D Printing)被形容為「第三次工業革命」,本港學界亦正積極迎合相關趨勢,於中學階段開始培育技術創意人才。香港四邑商工總會陳南昌紀念中學師生利 用互聯網「開源技術」,經過十多次的改良,近日終於自製出比巿價便宜達八成的「迷你版」3D打印機,學生透過電腦軟件繪出立體圖案後,便可使用3D打印機 製成立體模型。該校計劃再製作20部至30部3D打印機,讓校內每名學生均有機會自行構思及設計立體模型,以配合校內課程發展,又會將製作打印機的訣竅上 載與其他學校分享,藉此發掘及培養學生創意和創新思維,未來循創意科技業道路發展。
近年3D打印技術漸見普及,但市面的3D打印機價格並不便宜,最基本亦要花費6,000元至 10,000多元不等。為讓更多學生接觸尖端技術,從而啟發創意,陳南昌紀念中學電腦輔助設計科老師梁志宏透過互聯網「開源技術(open source)」,獲得3D打印機製作方法,並於去年聯同校內電腦學會學生,花近半年時間,終於自製成功「迷你版」3D打印機,輔助日常教學。

同學改良十多次終成功 

老師梁志宏指:「構思根據網上開源文件,但打印機內部細節及裝嵌方法,則經過同學十多次改良才成功。」
3D打印機運作原理簡單,先按電腦已畫好的立體圖案,分割成數百個切面,再用「聚乳酸」膠一層黏一層,疊成立體模型。雖然學校早已購置一部3D打印機,但梁老師表示,該打印機速度慢,製作一件立體模型需逾1小時,難以讓課堂上每位學生參與。
陳南昌中學師生製成的3D打印機,長闊各15厘米,高21厘米,體積只為坊間3D打印機的六分之一,亦因體積所限,其製作的立體模型一般亦只得指頭大小。不過梁志宏指,該校自製的3D打印機,成本亦較划算,只需約1,400元,較市面便宜77%至86%。 

訣竅上載互聯網冀推廣 

為將相關的創意工藝於學界分享推廣,他們稍後會把「迷你版」3D打印機訣竅上載互聯網,讓其他學校也可自行製作。
梁志宏及學生已獲學校批出資助,正訂購有關材料再陸續製作20部至30部3D打印機,預計可於復活節 假期後讓更多同學開始使用。該校又開辦了初中電腦輔助設計科,及高中的設計與應用科技科,讓學生能依從課程有系統學習相關知識。談及香港創意科技未來發 展,梁志宏認為,要培育創意科技人才,並非一朝一夕可成功,但可透過學校教育從小做起,「要讓學生從小認識及試用各種創新技術,從而培養興趣,鼓勵更多社 會未來棟樑投身相關行業」。

2013年1月29日 星期二

The Most Ridiculous Law of 2013 (So Far): It Is Now a Crime to Unlock Your Smartphone

www.theatlantic.com

ADVISORY
BY DECREE OF THE LIBRARIAN OF CONGRESS
IT SHALL HENCEFORCE BE ORDERED THAT AMERICANS SHALL NOT UNLOCK THEIR OWN SMARTPHONES. 

PENALTY: In some situations, first time offenders may be fined up to $500,000, imprisoned for five years, or both. For repeat offenders, the maximum penalty increases to a fine of $1,000,000, imprisonment for up to ten years, or both.* 

That's right, starting this weekend it is illegal to unlock new phones to make them available on other carriers.

I have deep sympathy for any individual who happens to get jail time for this offense. I am sure that other offenders would not take kindly to smartphone un-lockers.
But seriously: It's embarrassing and unacceptable that we are at the mercy of prosecutorial and judicial discretion** to avoid the implementation of draconian laws that could implicate average Americans in a crime subject to up to a $500,000 fine and up to five years in prison.

If people see this and respond, well no one is really going to get those types of penalties, my response is: Why is that acceptable? While people's worst fears may be a bit unfounded, why do we accept a system where we allow such discretionary authority? If you or your child were arrested for this, would it comfort you to know that the prosecutor and judge could technically throw the book at you? Would you relax assuming that they probably wouldn't make an example out of you or your kid? When as a society did we learn to accept the federal government having such Orwellian power? And is this the same country that used jury nullification against laws that it found to be unjust as an additional check upon excessive government power? [The only silver lining is that realistically it's more likely that violators would be subject to civil liability under Section 1203 of the DMCA, instead of the fine and jail penalties, but this is still unacceptable (but anyone who accepts payments to help others unlock their phones would clearly be subject to the fine of up to $500,000 and up to five years in jail).]

WHO REALLY OWNS YOUR PHONE?

When did we decide that we wanted a law that could make unlocking your smartphone a criminal offense?

The answer is that we never really decided. Instead, Congress passed the Digital Millennium Copyright Act (DMCA) in 1998 to outlaw technologies that bypass copyright protections. This sounds like a great idea, but in practice it has terrible, and widely acknowledged, negative consequences that affect consumers and new innovation. The DMCA leaves it up to the Librarian of Congress (LOC) to issue exemptions from the law, exceptions that were recognized to be necessary given the broad language of the statute that swept a number of ordinary acts and technologies as potential DMCA circumvention violations.

Every three years groups like the American Foundation for the Blind have to lobby Congress to protect an exception for the blind allowing for books to be read aloud. Can you imagine a more ridiculous regulation than one that requires a lobby group for the blind to come to Capitol Hill every three years to explain that the blind still can't read books on their own and therefore need this exception?

Until recently it was illegal to jailbreak your own iPhone, and after Saturday it will be illegal to unlock a new smartphone, thereby allowing it to switch carriers. This is a result of the exception to the DMCA lapsing. It was not a mistake, but rather an intentional choice by the Librarian of Congress, that this was no longer fair use and acceptable. The Electronic Frontier Foundation among other groups has detailed the many failings of the DMCA Triennial Rulemaking process, which in this case led to this exception lapsing.
Conservatives should be leading the discussion on fixing this problem. Conservatives are understandably skeptical of agencies and unelected bureaucrats wielding a large amount of power to regulate, and are proponents of solutions like the REINS Act (which has over 121 co-sponsors). However, if Congress truly wants to rein in the power of unelected bureaucrats, then they must first write laws in a narrow manner and avoid the need for intervention by the Librarian of Congress to avoid draconian consequences, such as making iPhone jail-breakers and smartphone un-lockers criminals, or taking away readable books for the blind.

If conservatives are concerned of unelected bureaucrats deciding upon regulations which could have financial consequences for businesses, then they should be more worried about unelected bureaucrats deciding upon what is or isn't a felony punishable by large fines and jail time for our citizens. And really, why should unelected bureaucrats decide what technological choices you can make with your smartphone? These laws serve to protect the interests of a few companies and create and maintain barriers to entry.
But there is another matter of critical importance: Laws that can place people in jail should be passed by Congress, not by the decree of the Librarian of Congress. We have no way to hold the Librarian of Congress accountable for wildly unfair laws. There are still plenty of crazy laws passed by elected officials, but at least we can then vote them out of office.

There are numerous other problems with the DMCA. As I explained in an essay for Cato Unbound:
"The DMCA bars developing, selling, providing, or even linking to technologies that play legal DVDs purchased in a different region, or to convert a DVD you own to a playable file on your computer. Because no licensed DVD playing software is currently available for the Linux operating system, if a Linux user wishes to play a DVD that they have legally bought, they cannot legally play it on their own computer.
In order to regulate this anti-circumvention market, the DCMA authorizes injunctions that seem to fly in the face of First Amendment jurisprudence on prior restraint. The DMCA also makes companies liable for copyright infringement if it doesn't remove content upon notification that someone believes the content infringes their copyright - this creates a very strong business interest in immediately taking down anything that anyone claims is infringing to not be liable. Christina Mulligan's essay for Copyright Unbalanced details how in mid-July 2012 a Mitt Romney campaign ad hosted on Youtube was forcibly removed from the site, and in 2008 Youtube blocked several John McCain ads for more than 10 days. As Mulligan details, the ads were legitimate under "fair use." Allowing individual people to veto political speech that they do not like stifles free expression and political dialogue and even if a rare occurrence under the DMCA should not be taken likely. There are also other examples of abuse, Mulligan details that one group had all Justin Bieber songs removed from Youtube as a prank."
And if you thought this was bad, provisions of the DMCA relating to anti-circumvention are part of the Trans-Pacific Partnership (TPP) Treaty -- and the United States is the party asking for it as part of the negotiations. Placing it in the treaty will enact our dysfunctional system on an international level in countries that don't want it, and it will "re-codify" the DMCA in an international treaty making it significantly more difficult to revise as necessary. Copyright laws are domestic laws and they need to be flexible enough to adjust accordingly to not inhibit new innovation.
I for one am pro-choice with regard to my smartphone. Our representatives ought to be, as well.
__________________________
* Specifically this refers to Section 1204 of Public Law 105-304, which provides that "any person who violates section 1201 or 1201 willfully and for purposes of commercial advantage or private financial gain. . .[shall be subject to the listed penalties]." However, given copyright laws broad interpretation by the courts, it could be argued that merely unlocking your own smartphone takes a device of one value and converts it into a device of double that value (the resale market for unlocked phones is significantly higher) and therefore unlocking is inherently providing a commercial advantage or a private financial gain - even if the gain hasn't been realized. In other words, unlocking doubles or triples the resale value of your own device and replaces the need to procure the unlocked device from the carrier at steep costs, which may be by definition a private financial gain. Alternatively, one can argue that a customer buying a cheaper version of a product, the locked version vs. the unlocked version, and then unlocking it themselves in violation of the DMCA, is denying the provider of revenue which also qualifies. There are several cases that have established similar precedents where stealing coaxial cable for personal use has been held to be for "purposes of commercial advantage or private financial gain." (See Cablevision Sys. New York City Corp. v. Lokshin, 980 F. Supp. 107, 109 (E.D.N.Y. 1997)); (Cablevision Sys. Dev. Co. v. Cherrywood Pizza, 133 Misc. 2d 879, 881, 508 N.Y.S.2d 382, 383 (Sup. Ct. 1986)).

** The Ninth Circuit recently explained in United States v. Nosal, 676 F.3d 854 (9th Cir. 2012) that under a "broad interpretation of the [Computer Fraud and Abuse Act (CFAA) you could be prosecuted for personal use of work computers]." The court explained that under this approach "While it's unlikely that you'll be prosecuted for watching Reason.TV on your work computer, you could be [emphasis in original]. Employers wanting to rid themselves of troublesome employees. . . could threaten to report them to the FBI unless the quit. Ubiquitous, seldom-prosecuted crimes invite arbitrary and discriminatory enforcement." The Court rejected this interpretation which would have made regular activity by average citizens as a potential felony and ruled that running afoul of a corporate computer use restriction does not violate the CFAA. It's possible that here a court would use judicial discretion to narrowly interpret the DMCA and reject the broad definitions that are typically advanced by the government.

2012年10月10日 星期三

量子電腦加密系統 改變人類生活

蘋果日報

今年兩位諾貝爾物理學獎得主,成功捕捉粒子觀察,解決了量子物理學家難以在不影響其量子特性下困住粒子的難題。解決了這難題,科學家從此可研發量子電腦、 量子資訊及加密系統,徹底改變未來人類生活。

量子密碼難破解

量子電腦有別於傳統電腦。現時電腦用的是二元碼,以0或1的位元資料儲存。量子電腦運算用來存儲數據的對象是量子位元(qubit),在量子疊加狀態下, 量子位元可能是0或1,或既是0又是1,增大資料儲存空間,運作速度也超快,像目前最快的超級電腦運算500個位的整數需10億年,但未來量子電腦只需1 分鐘。
近年科學界也提出利用量子力學中的量子糾纏性質,來實現資料高密度加密的傳送理論,美軍科研部門年前就宣稱研發出一種量子無線連接技術,通訊質量和保密程度足可媲美光纖傳輸。
而 量子密碼也是利用量子力學的特性,以確通訊的高度安全性,量子密碼的特質是當第三方試圖竊聽密碼時,通訊雙方都會察覺,通過量子疊加狀態或量子糾纏態來傳 輸信息,通信系統便可檢測是否存在竊聽,所以量子密碼保密的程度,連量子電腦也破解不了,相信日後可應用在國防機構和銀行的保安系統上。
《蘋果》資料室

2012年2月16日 星期四

Why QR Codes Won’t Last

mashable.com

Like most technology fans, I am always ready and willing to try any technology that promises to simplify my life. QR codes seemed to present an accessible and uniform way for people with smart devices to interact with advertising, marketing and media. Those little squares of code seemed to open a world of opportunity and potential. But after using them for a length of time, I shifted my perspective.

My initial honeymoon with QR codes was very short-lived. The initial rush that I had received from trying to frame the code on my device had lost its luster. I started to view QR codes as a barrier to additional information. And in many instances, the rewards (whatever I received as a result of scanning the code) did not measure up to the effort of the transaction itself.

Consider a recent study by comScore, which states that only 14 million American mobile device users have have interacted with a QR code. In essence, less than 5% of the American public has scanned a QR code. So where’s the disconnect?

Inadequate technology, lack of education and a perceived dearth of value from QR codes are just three of the reasons mobile barcodes are not clicking with Americans. But it goes deeper than that.

Humans are visual animals. We have visceral reactions to images that a QR code can never evoke; what we see is directly linked to our moods, our purchasing habits and our behaviors. It makes sense, then, that a more visual alternative to QR codes would not only be preferable to consumers, but would most likely stimulate more positive responses to their presence.

The QR Alternative

Enter mobile visual search (MVS). With MVS, you simply point at a product or logo and shoot a picture with your smartphone’s built-in camera. Within seconds, the MVS application will provide product or company information, or even the option to make a purchase right then and there on your mobile device.

MVS is a far more compelling and interactive tool to enable mobile marketing and commerce. In today’s increasingly mobile world, instant gratification is the norm, and taking the extra step of finding a QR code scanner on your mobile device no longer makes sense. With MVS, you are interacting with images that are familiar and desirable, not a square of code that elicits no reaction.

The opportunities are boundless with MVS. Unlike two-dimensional barcodes and QR codes, MVS will have wrap-around and three-dimensional recognition capabilities. Even traditional advertising will be revitalized with MVS. For example, picture an interactive print campaign that incorporates MVS as part of a competition or game. Marketers can offer instant gratification in the form of videos, mobile links, coupons or discounts as incentive for taking the best pictures of a particular product or logo.

The world has already started to migrate to MVS. For example, companies in Argentina and South Korea currently allow commuters waiting for subways or buses to view images of groceries or office supplies. Embedded within these images are recognitions triggers: Smartphone users place and pay for an order to be delivered or picked up within minutes.

Also, MVS can cash in on word-of-mouth marketing. Marketers will seamlessly link their campaigns to social networks so consumers can share photos and rewards, such as vouchers, coupons or music downloads, with their friends and followers.

QR Code Security Risks

In addition to being a more versatile medium, mobile visual search is also more secure than QR code technology. Cybercriminals are able to cloak smartphone QR code attacks due to the nature of the technology — QR codes’ entire purpose is to store data within the code. There is no way to know where that code is going to take you: a legitimate website, infected site, malicious app or a phishing site. MVS’s encryption modality will eliminate the opportunity for malicious code to download to your smartphone.

Recently, there have been documented cases of QR code misuse and abuse around the globe. For instance, infected QR codes can download an app that embeds a hidden SMS texting charge in your monthly cellphone bill. QR codes can also be used to gain full access to a smartphone — Internet access, camera, GPS, read/write local storage and contact data. All of the data from a smartphone can be downloaded and stolen, putting the user at risk for identity theft — without the user noticing.

Mobile visual search is a safer and more secure technology that can provide more information and content than a QR code, without as many security risks. By focusing on real-world objects and images rather than code, MVS lessens the risk of a virus or Trojan attack.

Safety, security and versatility — there are many reasons that MVS will supplant QR codes. However, there is one important, largely overlooked reason to favor MVS over QR codes: For the first time, we will be able connect with our actual surroundings in a truly interactive way. We will be able to provide a virtual marketplace that is familiar and accessible. Humanizing this interaction and making it more visual are the foundations of MVS’s imminent success.

Jon Barocas is the founder and CEO of bieMEDIA, a Denver-based online marketing and media solutions company that specializes in video content production and distribution, mobile visual search, technology platforms, SEO, VSEO and more.

2009年6月10日 星期三

高科技與政治

近來發覺政治已滲入高科技團體; 本來以為自己在参與高科技活動, 但週圍的人都在講政治, 覺得自已入錯了空間 !

政治是一個多面貌的動物, 可以好單純, 也可以好奸惑 ! 權利會使人失去理性 !
外面的權勢你又知幾多 ?

八國聯軍的教訓, 我們要永遠記住 !

所以政治, 唔好預我 !