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Tuesday, December 26, 2017

Phys.org (Dec 25, 2017): College students come up with plug-in to combat fake news

Phys.org (Dec 25, 2017): College students come up with plug-in to combat fake news
  • The (browser) plug-in, "Open Mind ," was developed earlier this month during a 36-hour problem-solving competition known as a hackathon at Yale University.
  • OpenMind App

Wednesday, November 29, 2017

Quartz (Nov 28, 2017): Coders should be afraid of what happened to the journalism industry

Quartz (Nov 28, 2017): Coders should be afraid of what happened to the journalism industry

  • " I’ve had two careers. I’ve been a developer, which has frankly paid most of the bills. And I’ve been a writer, which I’ve done mainly because I like it. It’s hard to admit this, but yes, I’d rather be a writer."

BBC Tiếng Việt (Nov 29, 2017): Diễn đàn Internet Việt Nam đầu tiên bàn về những gì?

BBC Tiếng Vit (Nov 29, 2017): Diễn đàn Internet Việt Nam đầu tiên bàn về những gì?

  • Trich: {...bà Victoria Rhodin Sandström, Bí thư Thứ nhất, Trưởng phòng Vụ Chính trị của Đại sứ quán Thụy Điển cho biết: "Những [vụ tấn công blogger/nhà báo] là một vấn đề phức tạp nhưng tôi rất vui là chúng tôi đã có thể có một diễn đàn mang tính xây dựng và cởi mở cho tất cả người dân và cả qua trực tuyến. Tôi nghĩ là vẫn còn rất nhiều điều để làm về việc cởi mở hơn và minh bạch hơn trên Internet, nhưng tôi vẫn rất vui về sự hợp tác tích cực của Bộ Thông tin và Truyền thông."}

NVP blog (Nov 27, 2017): Thương mại toàn cầu đang biến đổi: - Chuyển đi rồi lại chuyển về

NVP (blog) (Nov 27, 2017): Thương mại toàn cầu đang biến đổi - Chuyển đi rồi lại chuyển về
  • "...Còn nhớ cách đây chừng chục năm, một từ thời thượng lúc đó là offshore thì nay từ này đã được thay thế bởi từ reshoring mang nghĩa trái ngược, miêu tả nỗ lực của nhiều doanh nghiệp di dời cơ sở sản xuất về lại cố quốc. Các trường hợp thành công được báo chí tô đậm, từ loại doanh nghiệp vừa như ET Water Systems đến doanh nghiệp lớn như General Electric, đã quyết định chuyển các dây chuyền sản xuất máy giặt, máy lạnh, máy sưởi từ Trung Quốc về lại Kentucky, Mỹ..."

Saturday, November 25, 2017

Visual Capitalist (Nov 23, 2017): Map: Visualizing Every Ship at Sea in Real-Time

Visual Capitalist (Nov 23, 2017): Map: Visualizing Every Ship at Sea in Real-Time

Notre-planete.info (Nov 23, 2017): Avantages et inconvénients des lampes LED pour l'éclairage domestique

Notre-planete.info (Nov 23, 2017): Avantages et inconvénients des lampes LED pour l'éclairage domestique
  • "Alors que les lampes LED commencent enfin à s'installer dans nos foyers, des chercheurs américains ont mis au point une ampoule à filament de graphène.
    Découvert en 2004, le graphène est le plus fin cristal connu, il se trouve à l'état naturel dans les cristaux de graphite. Il est ultra-résistant, transparent et c'est un excellent conducteur d'électricité."

Monday, November 20, 2017

gCaptain (Nov 20, 2017): Noises Detected in Search for Missing Argentine Sub

gCaptain (Nov 20, 2017): Noises Detected in Search for Missing Argentine Sub
  • Gabriel Galeazzi, a naval commander, told reporters that the submarine had come up from the depths and reported an electrical malfunction before it disappeared 268 miles (432 km) off the coast.
  • “The submarine surfaced and reported a malfunction, which is why its ground command ordered it to return to its naval base at Mar del Plata,” he (Gabriel Galeazzi, a naval commander) said. 
  • One of the crew is Argentina’s first female submarine officer, Eliana Maria Krawczyk, 35, who joined the navy in 2004 and rose to become the master-at-arms aboard the ARA San Juan.
War is Boring (Nov 20, 2017): What Happened to Argentina's Missing Submarine?

Ars Technica (Nov 20, 2017): US Navy sends underwater robots to assist in search for Argentine sub

Friday, November 17, 2017

Energy Manager Today (Nov 14, 2017): Amazon Requests Discounted Power for New Ohio Data Centers

Energy Manager Today (Nov 14, 2017): Amazon Requests Discounted Power for New Ohio Data Centers

Facebook - Data Center Knowledge (Sep 27, 2010):  The Facebook Data Center FAQ

Friday, October 27, 2017

CNN Tech: What is Bitcoin?


CNN Tech: What is Bitcoin?

  • Bitcoin?
    Dù được nói đến khá nhiều trên báo chí bitcoin thật ra vẫn là vật ảo. Tuy nhiên chúng ta có biết bitcoin, theo tác giả Nguyễn Vạn Phú (blog - Thực tế bất ngờ của Bitcoin),
    "...gây nhiều bất ngờ là mức điện tiêu thụ khổng lồ chỉ để ghi nhận các giao dịch, hay gọi cách khác là đào Bitcoin?". Read more: IEEE Spectrum (Sept 28, 2017): The Ridiculous Amount of Energy It Takes to Run Bitcoin
  • Mặt khác, điều này làm ta "rơi" nước mắt vì có người muốn đánh thuế...bitcoin. Xin xem trích dẫn Phương Thơ {blog - Khi “Đại biểu Quốc hội đề xuất khung pháp lý quản lý Bitcoin”) sau đây:
    "... tôi ngần ngại phê phán rằng mấy ông  “Đại biểu Quốc hội đề xuất khung pháp lý quản lý Bitcoin”. Cụ thể là Đại biểu Quốc hội Phạm Phú Quốc (TP HCM). Và trích một đoạn “Hôm nay bỏ ra 4.000 đô la Mỹ mua 1 Bitcoin, ngày mai lên giá 5.000 đô la Mỹ. Như vậy là có sự giao dịch thương mại và có lợi nhuận, vậy thì phải thu thuế”. Link: http://cafef.vn/dai-bieu-quoc-hoiđe-xuat-khung-phap-ly-quan-ly-bitcoin-20171025172726098.chn ". Read more: Forbes (Jul 10, 2017): What You Need To Know About Cryptocurrencies And Taxes

  • Read more (12 14, 2017) - PT: Nói thêm về đồng tiền Bitcoin
    ...

Friday, October 13, 2017

Business Insider (October 12,2017): A former energy official for Obama explains why Tesla has the best plan for helping Puerto Rico

Business Insider (October 12,2017): A former energy official for Obama explains why Tesla has the best plan for helping Puerto Rico
  • ..."We wanted to do that with Puerto Rico but there are certain things that have to happen," Hurlbut said. "If you can't regulate the utility then you have no leverage to help them make this transition."

Wednesday, October 11, 2017

Quartz (Oct 11, 2017): DAMO Alibaba is plowing $15 billion into R&D with seven new research labs worldwide

Quartz (Oct 11, 2017): DAMO  Alibaba is plowing $15 billion into R&D with seven new research labs worldwide

  • DAMO (Academy)  which stands for “Discovery, Adventure, Momentum, and Outlook,” will open seven labs: Two will be in China (in Beijing and Hangzhou, Alibaba’s hometown), while the others will be in Singapore, Moscow, Tel Aviv, Bellevue (in the Seattle area), and San Mateo (in Silicon Valley).

Sunday, October 08, 2017

Visual Capitalist (Oct 6, 2017): U.S. Interstate Highways, as a Transit Map

Visual Capitalist (Oct 6, 2017): U.S. Interstate Highways, as a Transit Map

  • In a mile of highway, there are about 3 million tons of concrete. In comparison there are 6.6 million tons of concrete in the Hoover Dam.

Saturday, September 16, 2017

Low-tech magazine (September 2017): How (Not) to Run a Modern Society on Solar and Wind Power Alone

Low-tech magazine (September 2017): How (Not) to Run a Modern Society on Solar and Wind Power Alone
"...For instance, in Europe, the practical wind energy potential for electricity production on- and off-shore is estimated to be at least 30,000 TWh per year, or ten times the annual electricity demand. [...] In the USA, the technical solar power potential is estimated to be 400,000 TWh, or 100 times the annual electricity demand. [...]"

Friday, September 01, 2017

World Nuclear News (Aug 29, 2017): Texan nuclear plant runs through Hurricane Harvey

World Nuclear News (Aug 29, 2017): Texan nuclear plant runs through Hurricane Harvey

"The company noted the plant has steel-reinforced concrete containment with four-foot (1.2 meter) thick walls. The buildings housing the two reactors, vital equipment and used fuel have steel-reinforced concrete walls, four to seven feet (1.2 to 2.1 meters) thick, which are built to withstand hurricanes and tornadoes. The plant is located 10 miles (16 kilometres) inland and at an elevation of 29 feet (8.8m) above mean sea-level."

Monday, August 21, 2017

Quartz (August 21, 2017): Many homes aren’t ready to charge electric cars without blowing the fuse

Quartz (August 21, 2017): Many homes aren’t ready to charge electric cars without blowing the fuse

[...Homes could be retrofitted with main fuses that carry 100 amps or more, a complicated and costly exercise. So the grid operator says it would be preferable to build a network of shared, super-fast charging stations around the country “rather than carry out a large scale rebuild of the domestic electricity infrastructure.”]

Friday, August 18, 2017

Nguyễn Ngọc Chính' s blog (8/16/2017): Một thời làm báo tiếng Anh…

Nguyễn Ngọc Chính' s blog (8/16/2017): Một thời làm báo tiếng Anh…

"...Bước đầu VIR xây dựng một nhóm phóng viên người Việt gồm Hoàng Ngọc Nguyên (đã từng viết cho Saigon Post trước 1975) và hai “tay ngang” Nguyễn Vạn Phú và Nguyễn Ngọc Chính. Trên thực tế, hai người được gọi là “tay ngang” vì chỉ là những người dậy tiếng Anh nhưng hoàn toàn chưa có kinh nghiệm làm báo, nhất là báo tiếng Anh." "...Tôi gia nhập VIR khi sau khi báo ra được 2 số, in tại nhà in Itaxa của Thông tấn xã. Đến số thứ 3 thay vì in tại Sài Gòn lại có lệnh phải in tại Hà Nội."

Xem: Nguyễn Vạn Phú's blog; NVP (Sept 27, 2014): Làm báo thời MS-DOS

Vietnam Investment Review (VIR) - About us

Thursday, July 27, 2017

khoahocnet (July 21, 2017): Nguyễn Ngọc Chính – Phương tiện di chuyển của người Việt xưa

khoahocnet (July 21, 2017): Nguyễn Ngọc Chính – Phương tiện di chuyển của người Việt xưa

Comment: Triễn khai một đề tài bình thường nhưng với một kỷ năng xuất sắc; tài liệu phong phú, có thể kiểm chứng được với văn phong nhẹ nhàng.

Nguyễn Ngọc Chính's blog

TDK (June 12, 2017): Desktop Metal’s CTO on the Next Generation of Metal 3D Printing

TDK (June 12, 2017): Desktop Metal’s CTO on the Next Generation of Metal 3D Printing

Desktop Metal was founded in 2015 and recruited a number of material scientists and other engineers from MIT.By May of this year, the company had raised $97 million and was ready to unveil the Studio and Production Systems.

| "The DM Studio System is designed for safe metal rapid prototyping in the office or shop. With a price of $120,000, it’s is much less expensive than industrial powder bed fusion systems. Rather than using expensive, high-powered lasers, the DM Studio System relies on what Desktop Metal dubs Bound Metal Deposition (BMD). BMD sees metal powder bound in a plastic matrix melted and deposited onto a print bed in a method similar to fused filament fabrication (FFF) or fused deposition modeling."|  | "The DM Production System, as one might guess from the title, is for batch production of metal parts. It is expected to cost around $360,000, with additional equipment pricing to be determined, and is described as being 100 times faster than powder bed fusion technologies. It achieves this through the use of Single Pass Jetting, in which an inkjet print head deposits a binder onto a bed of metal powder and heats it in a single pass so that, with each move of the print head, another layer of a build job is made."|

Sunday, July 23, 2017

The Green Optimistic: Solar Panel System: How to Build a Cheap One

The Green Optimistic: Solar Panel System: How to Build a Cheap One

"...Now the hardest part of building the solar panel system, which requires increased care and seriousness in the quality of the work done, is connecting the panel to a pack of batteries and then to an inverter. You can use a computer UPS (Uninterruptible Power Source) (used UPS), but you’ll need more power to power your home. However, the batteries don’t have to be new, and they can be the lead-acid type, but it’s advisable that you should buy specially crafted ones for power storage and deep cycle use, since car batteries can only cope with high loads for a short time, and if they’re accidentally discharged below a certain threshold, you lose them for good."

Comment: cheap solar panel, expensive electronics. Some skills needed. Please check the inverter output voltage (i.e.120V) for proper use.

Tuesday, June 20, 2017

Core77 (June 19, 2017): Thoughts on Designing for Disassembly

Core77 (June 19, 2017):  Thoughts on Designing for Disassembly

"...My grandmother used the same rotary dial phone from 1960 till 2014. While I doubt anyone in our generation will ever have a phone that lasts that long, perhaps with the right type of hardware designs, our new products will last longer, and possibly even have components that continue on into new products."

Monday, June 19, 2017

Quartz (June 19, 2017): New technology allows companies to do away with hiring and just buy our skills online

Quartz (June 19, 2017):  New technology allows companies to do away with hiring and just buy our skills online
"...Amazon’s Mechanical Turk, a platform where freelance workers sign up to complete small tasks like labeling photos or taking surveys, sometimes for cents per job, has gone further. The website’s name comes from a machine that seemed to automate a chess match but actually had a person hidden inside. It’s designed to keep the worker hidden. Unlike Uber and Handy, customers don’t even know names or see photos of the workers who sign up for their tasks—workers are only known by their user ID numbers."

Creative Blog (December 22, 2016): 15 great places to sell your design work online

Salon (July 24, 2006): “I make $1.45 a week and I love it
[...In this case, it is computers getting help from people to do tasks.” As Tim O’Reilly, a computer book publisher and tech industry figure, puts it on his blog, old dreams of artificial intelligence are “being replaced by this new model, in which we are creating more intelligent systems by using humans as components of the application.”]  

Friday, June 16, 2017

Inhabitat (June 15, 2017): Revolutionary solar paint creates endless energy from water vapor

Inhabitat (June 15, 2017): Revolutionary solar paint creates endless energy from water vapor

"...In fact, because Titanium oxide is the same white pigment commonly found in wall paint when it is combined with the new material, the solar paint can “convert a brick wall into an energy harvesting and fuel production real estate,” said Daeneke. This means there is no need for filtered or clean water to feed the system. And, any location that has water vapor in the air — including remote areas — can produce fuel."

Friday, June 02, 2017

IEEE Spectrum (June 1, 2017): Aquatic Fixed-Wing Drone Could Lake-Hop Across Canada

IEEE Spectrum (June 1, 2017): Aquatic Fixed-Wing Drone Could Lake-Hop Across Canada

Sáng kiến 'một động cơ có thể ngâm mình thẳng đứng dưới nước để dễ dàng phóng khỏi mặt nước' có thể gợi ý rất mạnh đến những nhà thiết kế và chế tạo thuỷ phi cơ kiểu mới.

Thursday, June 01, 2017

Quartz (May 31, 2017): Ethiopia shut down the country’s internet to beat exam cheats

Quartz (May 31, 2017): Ethiopia shut down the country’s internet to beat exam cheats  

"...Ethiopia, which has one of the lowest internet and mobile connectivity rates in the world, was among the first countries to censor the internet to curtail political protests."

Tuesday, May 30, 2017

IEEE Spectrum (May 29, 2017): Differential Lidar Catches "Fugitive" Methane on the Fly

IEEE Spectrum (May 29, 2017): Differential Lidar Catches "Fugitive" Methane on the Fly

"...(Their) Methane Monitor is a differential-absorption lidar (DIAL) methane detection system that uses two lasers of slightly different infrared wavelengths to map the ground and measure atmospheric methane. Methane strongly absorbs one of the wavelengths (at about 1,645.55 nm, the “on-resonance beam”) and is virtually transparent to the other—at about 1645.4 nm, the “off-resonance beam”)." IEEE Spectrum feed

       Physics.org (June 26, 2013): Developing a new laser to detect methane leaks

Saturday, May 13, 2017

Ars Technica (May 11 2017): Cloudflare, sued by its first “patent troll,” hits back hard

Ars technica (May 11 2017): Cloudflare, sued by its first “patent troll,” hits back hard

"...The '335 patent was filed in 1998 and until recently was owned by inventor Oliver Kaufmann, apparently the head of a group of small IT companies in Germany. Patent office records show the patent was purchased by Blackbird for $1 plus "other good and valuable consideration."

Saturday, May 06, 2017

Nikkei Asian Review (May 5 2017): Thailand asks Facebook to block posts it deems illegal

Nikkei Asian Review (5/5/2017): Thailand asks Facebook to block posts it deems illegal 

"...Thai internet service providers used to block certain Facebook posts by themselves to comply with court orders, but since last year Facebook's encryption upgrades have made this more difficult."

Wednesday, April 19, 2017

Yahoo - AP (4/19/2017): US Navy redesigning its submarines to accommodate women

Yahoo - AP (4/19/2017): US Navy redesigning its submarines to accommodate women

"...For example, they are lowering some overhead valves and making them easier to turn, and installing steps in front of the triple-high bunk beds and stacked laundry machines."

Sunday, March 26, 2017

Joides Resolution website (3/21/2017): Behind the Science - Water on the sea

Joides Resolution website (3/21/2017): Behind the Science - Water on the sea

"...Once leaving the storage tanks the water will go through a particle bag filter then through  UV Sterilization System then out into the system. Water from the sinks and showers has this process while the water coming from the water fountains and the dispensers in the Galley have an additional carbon filter located at each piece of equipment."