Cleaning Up the Plastic Pollution in Our Oceans
Posted on January 30, 2016 Comments (0)
This is an interesting talk on an important topic: cleaning up plastic in the ocean. ,a student from the Netherlands, looked to find a solution to a problem others said couldn’t be solved.
This is exactly the type of wonderful activity that inspired people can accomplish using science and engineering. He collected an understanding of the 50 issues that supposedly makes a solution impossible.
After getting funding (sparked by an explosion of viral social media) he worked on exploring the “insolvable” problems (having withdrawn from school to work on this problem). It is wonderful to see what we can do when inspired people use science and engineering to make the world a better place.
From their website, The Ocean Cleanup
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The plastic will be stored in an internal buffer within the platform at the tip of the V-shaped array. The plastic in the buffer will regularly be emptied onto a vessel that comes to collect it for transport to land. This will occur approximately once every six weeks, depending on the size of the vessel.
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Besides monetary support, your relevant knowledge and skills may be a very welcome addition to The Ocean Cleanup. Our work requires not only scientific and technical expertise, but also assistance with legal, commercial and policy matters. If you would like to get actively involved in our work, If you would like to get actively involved in our work, please visit the careers page.
They aim to put a full scale pilot project in place in 3 to 4 years.
Related: Albatross Chicks Fed Plastic Ocean Pollution by Parents – Altered Oceans: the Crisis at Sea (2006) – Using Robots to Collect Data on our Oceans – Dead Zones in the Ocean
Tags: Engineering,Funding,ocean,pollution,undergraduate students
Ancient Chinese Natural Gas Drilling Using Bamboo
Posted on January 23, 2016 Comments (0)
This very interesting article is a great read about the history of Chinese bamboo drilling by Oliver Kuhn.
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At some point around 2,000 years ago the leap from hand and shovel dug wells to percussively drilled ones was made. By the beginning of the 3rd century AD, wells were being drilled up to 140m deep. The drilling technique used can still be seen in China today, when rural farmers drill water wells. The drill bit is made of iron, the pipe bamboo. The rig is constructed from bamboo; one or more men stands on a wooden plank lever, much like a seesaw, and this lifts up the drill stem a metre or so. The pipe is allowed to drop, and the drill bit crashes down into the rock, pulverizing it. Inch by inch, month by month, the drilling slowly progresses.
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A major breakthrough was achieved around 1050 AD, allowing deeper wells, when solid bamboo pipe was replaced by thin, light, flexible bamboo “cable”. This dramatically lowered the weight that needed to be lifted from the surface, a weight that increased with the depth being drilled. By the 1700s Sichuan wells were typically in the range of 300 – 400m deep
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One bamboo pipe line would take away the brine, and others the gas. The 2,000 year plus Sichuan salt industry has drilled approximately 130,000 brine and gas wells, and 10% of those were in the immediate Zigong area. Zigong has a cumulative gas production over this period of over 30 billion cubic metres. The area continues to be a major salt producer, and many of the historical wells are still in production.

An ancient sketch originally from “The Annals of Salt Law of Sichuan Province”. A “Kang Pen” drum is seen in the centre foreground, with gas pipes directly feeding the salt stoves on the right. At the top, brine from a remote well is being carried in buckets by men, who feed it into a bamboo pipeline that runs down to the stoves. One of the carriers is being paid at top left, and it appears that a blow out is depicted on a new well being drilled.
(from Zhong & Huang)
As recently as the 1950s there was still over 95km of bamboo pipeline in operation in the Zigong area.
Related: Research on Ancient Roman Concrete Will Allow the Creation of More Durable and Environmentally Friendly Concrete – Why did China’s Scientific Innovation Stop? – Hyperloop – Fast Transportation Using a Better Engineering Solution Than We Do Now
Tags: appropriate technology,China,cool,Energy,history,innovation
Backyard Wildlife: Fox
Posted on January 17, 2016 Comments (3)
I have seen this (or another fox) several times recently but this was the first time it stayed visible long enough for me to get a photo. It is fun having backyard wildlife to connect us to nature.
A few years ago another fox enjoyed laying out in the sun in my backyard for a few weeks.
I am amazed how many animals I have seen in my backyard in a very urban area. In the last few weeks, in addition to this fox: possum, raccoon (I’ll post photos later), deer, squirrels, and various birds.
Here is an updated photo of deer, since my first few sightings didn’t result in a good photo.
$1 Device To Give Throat Cancer Patients Their Voice Again
Posted on January 2, 2016 Comments (1)
Bengaluru Doctor Invents a Rs. 50 Device To Give Throat Cancer Patients Their Voice Again
We need to keep developing cost effective solutions to provide for the needs of billions of people around the world. It is great to see appropriate technology solutions at work making people’s lives better.
Related: Appropriate Technology Health Care Solution Could Save 72,000 Lives a Year – Manufacturing Biological Sensors Using Silk and Looms – Pedal Powered Washing Machine – Appropriate Technology: Self Adjusting Glasses
Tags: appropriate technology,cancer,human health,India,innovation,Products