Wristband Thermometer Can Save Many Babies Lives
Posted on October 4, 2015 Comments (0)
As I have mentioned many times before, I really love the use of appropriate technology to make a significant contribution to our lives. It is hard to do much better than saving our babies from death.
Hypothermia and infection are among the top causes of newborn deaths for the poor around the world. Regular temperature monitoring can enable early intervention.
Bempu is a new startup based in India that is developing a wrist-band for newborns that monitors their temperature and gives an audio-alarm if the temperature is unsafe. This isn’t an Apple-watch but it is just as worthy of publicity.
The Gates Foundation, and others, have contributed money to bring this product to market.
From an article on the new wristband:
We know what the problems are, we know what to do about it and it’s not happening,” says Karsten Lunze, a doctor and expert in newborn hypothermia at Boston University. If Bempu, which is still in prototype and will likely get to market by the end of 2015, succeeds, “it would be a miraculous catalyzer that everyone has been looking for over a decade,” he says. It’s testing well so far: A prototype, used on 25 newborns this year, detected a temperature drop a full 24 hours before hospital workers noticed.
Bempu was born after Narain followed his nose to the global south at 27, where he worked as an engineering fellow at Embrace, a nonprofit that makes a cheap, portable and rechargeable incubator for newborns. He noticed something clear: No one was really watching closely. Nurses lacked thermometers; some couldn’t even read them and mothers didn’t know the difference between Celsius and Fahrenheit.
Related: Manufacturing Biological Sensors Using Silk and Looms in India – Cheap vinegar test cut cervical cancer deaths in India; could help many poor countries – Using Drones to Deliver Medical Supplies in Roadless Areas – Appropriate Technology and Focus on Improving Lives at MIT – Water Wheel
Backyard Wildlife: Deer
Posted on September 27, 2015 Comments (1)
Deer populations have been exploding across the USA in the last century. Before that deer populations had collapsed largely due to hunting. In the last 10 or 20 years populations of deer have been largely stable (though varying quite a bit by area).
The deer populations had increased (many predators were largely wiped out and with a dramatic decline in hunter) so much that more and more complaints were being made to local governments of problems with deer grazing on property and damaging cars when the cars hit deer crossing the road.
My neighborhood is urban and I have never seen deer in the neighborhood. About 5 blocks away there is a bike path with a tree lined strip of nature where I have very occasionally seen deer. The deer in the photos I imagine got here from that strip of habitat. There is a small area (next to a school which has trees that wouldn’t be so bad for a deer for 1 night). I figured the deer would leave.
But a few days later I saw new evidence of a deer eating some small trees in my backyard – though I wasn’t sure if I missed it before. Then a couple nights later I saw a deer grazing after dark in my backyard.
Highest Paying Fields at Mid Career in USA: Engineering, Science and Math
Posted on September 20, 2015 Comments (0)
Payscale has again provided details on average salaries by major for various fields. Once again engineering, math and science dominate. For this data they define mid-career as those with 10+ years of experience.
The top 15 bachelor degrees by mid-career salary were all from those 3 fields. And the median salary was $168,000 for petroleum engineering degrees (at the top) to $107,000 for Aerospace Engineering and Computer Science and Mathematics (tied for 14th).
The starting salaries for those with these degrees ranged from $58,000 for Actuarial Mathematics (though by mid-career salary they were in 3rd place at $119,000) to $101,000 for petroleum engineering. My guess is petroleum engineering salaries will decline from their current highs (as they have done in previous oil price busts). The second highest paying bachelor degree starting salary was for mining engineering at $71,500 – with most of the other fairly close to that amount.
Nuclear engineering pay started at a median of $68,200 before rising to the 2nd highest mid-career level of $121,000.
Payscale also provided data based on master’s degree field. Again petroleum engineering was in first place by mid-career ($173,000). Nurse anesthesia was in second at $159,000 and held the first spot for starting median salary ($139,000).
Taxation is the only filed that is obviously not STEM (science, technology, engineering and math) related which had the lowest initial median salary of $60,700 but was tied for 5th for mid career salary at $126,000. Technology management and operations research are also not STEM fields though are a bit related to the STEM area.
PhD degree’s with the highest mid-career median earning are again all STEM fields. Economics is one many people probably don’t think of as STEM but it is (as a social science) and really it is largely mathematics at this point.
Many of the PhD starting salaries are at $100,000 (or close). The disciplines with the highest mid-career median salaries are: Electrical and Computer Engineering $142,000; Computer Engineering $139,000; Chemical Engineering $138,000; Biomedical Engineering, $137,000; and Economics $134,000.
Related: No Surprise, Engineering Graduates Pay Continue to Reign Supreme (2012) – The Time to Payback the Investment in a College Education in the USA Today is Nearly as Low as Ever, Surprisingly (2014) – Engineering Again Dominates The Highest Paying College Degree Programs (2011) – Earnings by College Major” Engineers and Scientists at the Top (2013) – Looking at the Value of Different College Degrees
In Many Crops Ants Can Provide Pest Protection Superior or Equal to Chemicals at a Much Lower Cost
Posted on September 1, 2015 Comments (0)
Most of the studies in Offenberg’s review are on weaver ants (Oecophylla), a tropical species which lives in trees and weaves ball-shaped nests from leaves. Because weaver ants live in their host trees’ canopy, near the flowers and fruit that need protection from pests, they are good pest controllers in tropical orchards.
All farmers need to do is collect ant nests from the wild, hang them in plastic bags among their tree crops and feed them a sugar solution while they build their new nests. Once a colony is established, farmers then connect the trees that are part of the colony with aerial ‘ant walkways’ made from string or lianas.
After that, the ants need little, except for some water in the dry season (which can be provided by hanging old plastic bottles among the trees), pruning trees that belong to different colonies so that the ants do not fight, and avoiding insecticide sprays.
The review shows that crops such as cashew and mango can be exceptionally well protected from pests by weaver ants.
One three-year study in Australia recorded cashew yields 49% higher in plots patrolled by ants compared with those protected by chemicals. Nut quality was higher too, so net income was 71% higher with ants than with chemicals.
Similar studies in Australian mango crops found that ants could produce the same yield as chemical control, but because the ants were cheaper, and fruit quality better, net income from mangoes produced with ant protection was 73% higher.
Those crops are special cases in which the ants are vastly superior. But in many other cases ants are as effective and much cheaper than chemical options. Different species of ants are suited to protecting different types of drops. Weaver ants require a canopy, other ants can protect crops without a canopy.
I hope more farmers adopt ants to help protect their crop yields.
Related: Pigs Instead of Pesticides – Why Don’t All Ant Species Replace Queens in the Colony, Since Some Do – How To Make Your Own Pesticide with Ingredients from Your Kitchen – Another Bee Study Finds CCD is Likely Due to Combination of Factors Including Pesticides (2013)
Exercise Is Really Really Good for You
Posted on August 19, 2015 Comments (3)
Nice webcast that reviews the benefits of exercise that are confirmed by medical studies.
150 minutes a week of moderate (walking briskly, biking, even mowing the lawn maybe) activity (30 minutes a day 5 days a week) is a decent target for a minimum amount of activity for most people. I have not bought a car since my move (2 months ago) and walk to the grocery store, library, bank, subway, restaurants which is easily 30 minutes and usually more each trip. And for further away places I am biking.
Another option is 25 minutes of vigorous activity 3 times a week and 2 days a week of weight training. Basketball is my favorite form of vigorous activity and sometimes my biking and yard work reach that mark. I like swimming (and I did swim a fair amount when I had a pool at my condo but I don’t swim now as it isn’t right downstairs from my bedroom). I like vigorous activity as I end up feeling refreshed and it serves as a noticeable form of stress release for me.
Related: Better Health Through Exercise, Not Smoking, Low Weight, Healthy Diet and Low Alcohol Intake – Examining the Scientific Basis Around Exercise and Diet Claims – Inactivity Leads to 5.3 Million Early Deaths a Year
Lexus Has Built a Working Hoverboard
Posted on June 24, 2015 Comments (3)
Toyota continues to do some fun and interesting research while they produce great cars (and make a lot of money doing so that allows them resources to do interesting research). Some past posts on their engineering exploits: Toyota Develops Thought-controlled Wheelchair (2009), Toyota Engineering Development Process, Innovation at Toyota, How to Develop Products like Toyota, Toyota IT Overview.
Toyota is teasing with the hoverboard announcement but it seems they have actually created it (though it isn’t ready to be in stores this year.
Liquid nitrogen cooled superconductors and permanent magnets combine to power the Lexus Hoverboard.
Sadly they haven’t bothered to hire a decent web designer. They have a pretty but broken website, with essentially no information. It is sad when interesting stories are keep to nearly no information using poorly designed websites created by people obviously more concerned with old fashion paper design thinking than how the web can be used to be clear and useful (not just pretty).
Pretty much for the last 10 years Toyota has had pretty but web hostile design for their web sites. It is a shame they can’t hire people that know how to properly create good web sites. Thankfully they hire good engineers and use good processes to actually develop products.
Computer Code for NASA’s Apollo Guidance System
Posted on June 13, 2015 Comments (2)
The guidance computer used something known as “core rope memory“: wires were roped through metal cores in a particular way to store code in binary. “If the wire goes through the core, it represents a one,” Hamilton explained in the documentary Moon Machines. “And around the core it represents a zero.” The programs were woven together by hand in factories. And because the factory workers were mostly women, core rope memory became known by engineers as “LOL memory,” LOL standing for “little old lady.”
Hamilton is now 78 and runs Hamilton Technologies, the Cambridge, Massachusetts-based company she founded in 1986. She’s lived to see “software engineering” — a term she coined — grow from a relative backwater in computing into a prestigious profession.
In the early days, women were often assigned software tasks because software just wasn’t viewed as very important. “It’s not that managers of yore respected women more than they do now,” Rose Eveleth writes in a great piece on early women programmers for Smithsonian magazine. “They simply saw computer programming as an easy job. It was like typing or filing to them and the development of software was less important than the development of hardware. So women wrote software, programmed and even told their male colleagues how to make the hardware better.”
My aunt was one of those early software engineers. She wrote a chapter for a book, Programming the IBM 360, in the 1960s. My uncle was one of the first employees at NASA and rose to be one of the senior administrators there over his career.
It is great when society is able to capture the value individuals are capable of providing. We need to make sure we allow everyone opportunities to contribute. We do well in many ways but we also do lose from discrimination and also just making it uncomfortable for people to contribute in certain roles when we need not do so.
We have accomplished great things with software in the last 40 years. We could have accomplished more if we had done a better job of allowing women to contribute to the efforts in this field.
Your Choices Determine if Others Will Find You Credible
Posted on June 6, 2015 Comments (0)
I was planning on writing about some decent thoughts on healthy living but the very strong info-commercial feel of the web site turned me off. The ideas hidden behind the whole info-commercial feel may actually be worth following. But the more I looked the less credibility I could retain for someone promoting themselves this way.
The final straw was seeing they are planning on going on the Dr. Oz show. I can’t respect anyone that has interest in real health could create an info-commercial like web site and then go on a show that promotes anti-science thinking.
If you are promoting the latest fad diet book and other high priced gimmicks the web site they have and deciding to appear on popular but scientifically inaccurate TV shows makes perfect sense. But those choices damage any credibility that could be had otherwise and make it difficult for others to take you seriously. You just put yourself into the bin with all the fad diets sales pitches in play at any time.
Related: Merck and Elsevier Publish Phony Peer-Review Journal – A Healthy Lifestyle is More About Health Care than the Sickness Management That We Call Health Care Is – Food Rules: An Eater’s Manual – Eat food. Not too much. Mostly plants.
Data Furnaces: Free Heating, for Those with Fiber Internet
Posted on May 29, 2015 Comments (2)
Data furnaces have arrived in the Netherlands offering free heating for those with fiber internet connections. Those running data centers spend a lot of money cooling them off or thinking of ways to keep cooling costs down Google Uses Only Outside Air to Cool Data Center in Belgium (weather should provide free cooling for all but about 7 days a year).
Nerdalize is offering an interesting engineering solution to this issue. Even better than eliminating cooling costs this idea will use the excess heat to warm people’s houses.
This structural cost advantage allows us to offer computing power that is up to 55% more affordable than major cloud-providers or co-location solutions whilst giving incredible performance.
The Nerdalize heater contains high-performance servers in the form of a radiator and allows for them to be placed in your home safely and secure. As Nerdalize covers the cost of electricity, the heat generated by computations, such as medical research, heat your home for free.
The installation of a server heater, the Eneco eRadiator, in the living rooms of five families at different locations in the Netherlands this month starts a field test of the units. The purpose of the test is to collect information on customer experience and to identify possible areas of improvement of the eRadiator.
Sign up on their website if you want free heating (Netherlands is likely the best bet but they may expand around Europe also, or even further).
Intel International Science and Engineering Fair 2015
Posted on May 19, 2015 Comments (1)
Raymond Wang, 17, of Canada was awarded first place for engineering a new air inlet system for airplane cabins to improve air quality and curb disease transmission at this year’s Intel International Science and Engineering Fair.
Wang’s system improves the availability of fresh air in the cabin by more than 190% while reducing pathogen inhalation concentrations by up to 55 times compared to conventional designs, and can be easily and economically incorporated in existing airplanes. Wang received the Gordon E. Moore Award of US$75,000. The system uses vents to create a “bubble” around passengers that deflects incoming air.
Nicole Ticea, 16, of Canada received one of two Intel Foundation Young Scientist Awards of US$50,000 for developing an inexpensive, easy-to-use testing device to combat the high rate of undiagnosed HIV infection in low-income communities. Her disposable, electricity-free device provides results in an hour and should cost less than US$5 to produce. Ticea has already founded her own company, which recently received a US$100,000 grant to continue developing her technology.
Karan Jerath, 18, of Friendswood, Texas, received the other Intel Foundation Young Scientist Award of US$50,000 for refining and testing a novel device that should allow an undersea oil well to rapidly and safely recover following a blowout. Jerath developed a better containment enclosure that separates the natural gas, oil and ocean water; accommodates different water depths, pipe sizes and fluid compositions; and can prevent the formation of potentially clogging methane hydrate.
This year’s Intel International Science and Engineering Fair featured approximately 1,700 young scientists selected from 422 affiliate fairs in more than 75 countries, regions and territories.
Related: Intel Science Talent Search 2012 Awardees – Great Projects From First Google Science Fair Finalists (2011) – 2008 Intel Science Talent Search – High School Student Creates: Test That is Much More Accurate and 26,000 Times Cheaper Than Existing Pancreatic Cancer Tests
Car Powered by Compressed Air
Posted on May 12, 2015 Comments (2)
I wrote about cars powered by compressed air back in 2008. Turning such innovative prototypes into products of sustainable businesses is quite difficult.
This new attempt to produce cars powered by compressed air has an innovative design with a joystick instead of a drivers wheel. The AirPod is being developed in France. Compressed air has been used to power trams in France since the 19th century.
The AirPod has a range of 150 to 200 km and a top speed for 80 km per hour. The cost will be about US$10,000.
They claim the cost per mile is about 1/3rd of that for electric vehicles. It is nice that we have engineers around the globe continually working on new uses of technology to provide us better options for living.
I hope such cars can be a success. It does seem to me electric cars seem the more likely large scale success but it is good to have people seeking out innovative solutions.
Related: Compressed Air Powered Car Webcast (2008) – Self Driving Cars Have Huge Potential for Benefit to Society – Engineers Save a Life, With Safe Car Design – Toyota Scion iQ (2011) – Car Style Mass Transit Mag Lev System (2009)