ExtremeTech (July 31, 2017): Foxconn Claims It’ll Build a Factory in Wisconsin, but Don’t Hold Your Breath

ExtremeTech (July 31, 2017): Foxconn Claims It’ll Build a Factory in Wisconsin, but Don’t Hold Your Breath

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."|

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.

The New York Times Magazine (May 15, 2013): Some of My Best Friends Are Germs

The New York Times Magazine (May 15, 2013): Some of My Best Friends Are Germs

Slate.fr (Aug 2, 2017): Les couples s’échangent des millions de colonies de microbes, notamment par les pieds

Hackaday (July 15, 2017): Let’s Play Spot The Fake MOSFET

Hackaday (July 15, 2017): Let’s Play Spot The Fake MOSFET

Inrasara blog (6 July 2017): CHAKLENG: HÀNH TRÌNH VỀ PHÍA ĐẸP, PHÍA TIẾN BỘ

Inrasara blog (6 July 2017): CHAKLENG: HÀNH TRÌNH VỀ PHÍA ĐẸP, PHÍA TIẾN BỘ

Nguyễn Ngọc Chính's blog (April 11, 2017): Du Ký Ninh Thuận  (1), (2)

iFixit.org (July 12, 2017): Keep the Internet Weird: Save Net Neutrality

iFixit.org (July 12, 2017): Keep the Internet Weird: Save Net Neutrality

Inhabitat (July 14, 2017): Rotating indoor garden grows up to 100 herbs and vegetables every month

Inhabitat (July 14, 2017): Rotating indoor garden grows up to 100 herbs and vegetables every month

Ars Technica (July 11, 2017): Two energy powerhouses join together to make big, grid-tied batteries

Ars Technica (July 11, 2017):  Two energy powerhouses join together to make big, grid-tied batteries

Between the Poles (July 06, 2017): Identifying and tracking power outages worldwide through social media

Between the Poles (July  06, 2017): Identifying and tracking power outages worldwide through social media

The Guardian (July 10, 2017): Facebook village? Social media giant to build 'social housing'

The Guardian (July 10, 2017): Facebook village? Social media giant to build 'social housing'

    Courtesy of Google Maps

Libération (10 Juillet 2017): En Californie, Facebook veut bâtir sa propre ville

Visual Capitalist (July 8, 2017): The Dark Side of the Internet

Visual Capitalist (July 8, 2017): The Dark Side of the Internet

All Things Nuclear (July 7, 2017): Reentry Heating from North Korea’s July 4 Missile Test

All Things Nuclear (July 7, 2017): Reentry Heating from North Korea’s July 4 Missile Test

Our May 2017 Wordpress permalink

Between the Poles (June 28, 2017): Satellites and geospatial together help detect illegal fishing

Between the Poles (June 28, 2017): Satellites and geospatial together help detect illegal fishing