Tag Archives: Products

Electrolyzed Water Replacing Toxic Cleaning Substances

Simple elixir called a ‘miracle liquid’

The stuff is a simple mixture of table salt and tap water whose ions have been scrambled with an electric current. Researchers have dubbed it electrolyzed water

Used as a sanitizer for decades in Russia and Japan, it’s slowly winning acceptance in the United States. A New York poultry processor uses it to kill salmonella on chicken carcasses. Minnesota grocery clerks spray sticky conveyors in the checkout lanes. Michigan jailers mop with electrolyzed water to keep potentially lethal cleaners out of the hands of inmates.

In Santa Monica, the once-skeptical Sheraton housekeeping staff has ditched skin-chapping bleach and pungent ammonia for spray bottles filled with electrolyzed water to clean toilets and sinks. “I didn’t believe in it at first because it didn’t have foam or any scent,” said housekeeper Flor Corona. “But I can tell you it works. My rooms are clean.”

It turns out that zapping salt water with low-voltage electricity creates a couple of powerful yet nontoxic cleaning agents. Sodium ions are converted into sodium hydroxide, an alkaline liquid that cleans and degreases like detergent, but without the scrubbing bubbles. Chloride ions become hypochlorous acid, a potent disinfectant known as acid water.

“It’s 10 times more effective than bleach in killing bacteria,” said Yen-Con Hung, a professor of food science at the University of Georgia-Griffin, who has been researching electrolyzed water for more than a decade. “And it’s safe.”

There are drawbacks. Electrolyzed water loses its potency fairly quickly, so it can’t be stored long. Machines are pricey and geared mainly for industrial use. The process also needs to be monitored frequently for the right strength.

Very cool use of science: providing a green cleaning agent that is effective.

Related: Clean Clothes Without Soapposts on chemical engineeringiRobot Gutter Cleaning RobotWater From Air

Teen Goalie Designs Camouflage Pads

Teen goalie designs pads to trick shots

Leahy sketched out new leg pads that blend into the goal netting behind him. He wanted pads, a trapper, and a blocker that are white with a raised double-stitched design, just like the goal. He applied for a design patent and had them custom-made by a Canada-based pad maker.

“When the shooter comes down and only has a split second to shoot the puck, they’re looking for net,” said Leahy, a senior from Hampton, N.H., who grew up in Byfield. “If you put the net on the pad, they’ll shoot at the pad instead of the goal.”

Exactly what will happen to the pads after this season is unclear. Leahy said he would like to play hockey in college, probably at the club level, and wants to market the idea. “It would definitely be cool to get it out there and get other guys in the future wearing it,” he said.

Related: The Glove – Engineering CoolnessEngineering Basketball FlopScience of the High Jump

MRI That Can See Bacteria, Virus and Proteins

IBM team boosts MRI resolution

The researchers demonstrated this imaging at a resolution 100 million times finer than current MRI. The advance could lead to important medical applications and is powerful enough to see bacteria, viruses and proteins, say the researchers.

The researchers said it offered the ability to study complex 3D structures at the “nano” scale. The step forward was made possible by a technique called magnetic resonance force microscopy (MRFM), which relies on detecting very small magnetic forces.

In addition to its high resolution, MRFM has the further advantage that it is chemically specific, can “see” below surfaces and, unlike electron microscopy, does not destroy delicate biological materials.

Now, the IBM-led team has dramatically boosted the sensitivity of MRFM and combined it with an advanced 3D image reconstruction technique. This allowed them to demonstrate, for the first time, MRI on biological objects at the nanometre scale.

That is very cool.

Related: IBM Research Creates Microscope With 100 Million Times Finer Resolution Than Current MRIMagnetic Resonance Force Microscopy (from Stanford)Nanotechnology Breakthroughs for Computer ChipsSelf-assembling Nanotechnology in Chip ManufacturingNanoparticles to Aid Brain Imaging

Student Invents Solar-Powered Fridge

solar powered refrigerator illustration

Student Invents Solar-Powered Fridge for Developing Countries

21-year-old student/inventor/entrepreneur Emily Cummins has designed a brilliant portable solar-powered refrigerator that works based upon the principle of evaporation. Employing a combination of conduction and convection, the refrigerator requires no electricity and can be made from commonly available materials like cardboard, sand, and recycled metal.

Simply place perishable foods or temperature-sensitive medications in the solar refrigerator’s interior metal chamber and seal it. In-between the inner and outer chamber, organic material like sand, wool or soil is then saturated with water. As the sun warms the organic material, water evaporates, reducing the temperature of the inner chamber to a cool, 6 ºC [43 ºF] for days at a time!

After winning £5,000 from York Merchant Adventurers for her idea, Emily delayed going to college for a year to take her refrigerator to Africa for further development.

At 16 Emily won a regional Young Engineer for Britain Award for creating a toothpaste squeezer for people with arthritis, and the next year went on to win a Sustainable Design Award for a water-carrier made from wood and rubber tubing. In 2007 Emily was named the British Female Innovator of the Year, and last year was short-listed for Cosmopolitan’s 2008 Ultimate Women of the Year Competition.

Update: some readers seem confused by what related means below. Those links show previous post to related items and include previous similar designs to keep things cool, including “Refrigerator Without Electricity” which is a clay pot design by Mohammed Bah Abba of Nigeria for the Pot in Pot Cooling System that received the 2000 Rolex award.

Related: Refrigerator Without ElectricityCompressor-free Refrigeratorposts on appropriate engineeringUK Young Engineers CompetitionsWinter Air RefrigerationThe Glove, Engineering Coolness

Eliminate Your Phone Bill

I have written about Innovation Thinking with Clayton Christensen on the Curious Cat Management Blog previously. Here is an example of such innovation. All you need is a broadband internet connection and you can Kiss your phone bill good-bye:

The Ooma service uses so-called Voice over Internet Protocol (or VOIP) technology to deliver calls to your existing phone using a broadband connection. Consumers need only to buy a $249 Ooma Hub (it was a hefty $399 when the service launched last year); all domestic calls are free. (Ooma charges a few pennies a minute for international calls to landlines and 20 to 30 cents a minute for overseas calls to mobile phones. Calls from Ooma box to Ooma box are free.)

Replacing your phone service is, of course, just the start for Ooma. In some ways, calling is the Trojan horse to get the box in your house and then figure out other services to sell, like enhanced network security or kid-safe Web surfing.

I ordered mine from Amazon for $203 and have been using it for a little over a month; it has been great. Relatively easy to setup (they had a pretty good customer survey and I recommended they use colored cables – they color cables in the drawings in the users guide but give you 3 white cable to use – they are different types of cables so it isn’t tough to figure out but that would make it a bit easier).

I have been using Vonage for awhile and it is ok, but I don’t see any reason to pay each month when Ooma doesn’t charge a monthly fee (even on the lowest option on Vonage the bill is over $22/month).

I think gadgets are cool, but I will admit most of the time I don’t really want to be bothered to actually use them. But this is easy to you and saves me $20/month, that I like.

Related: Freeware Wi-Fi app turns iPod into a PhoneHome Engineering: Physical Gmail NotifierSix Keys to Building New Markets by Unleashing Disruptive InnovationThe Innovators Solution by Clayton M. Christensen and Michael E. Raynor –

Making Magnificent Mirrors with Math

At Drexel, he designs amazing mirrors

Could math provide the path to better reflection? Perline asked.

Indeed it could. Eight years and numerous calculations later, Hicks is now testing a prototype mirror – for a car, not a bike – and he is in talks with a foreign manufacturer. As with the bike mirror, the rounded surface provides a wide field of view – so wide that it eliminates the dreaded, driver-side “blind spot” – yet the subtle mathematics of his design result in little or no distortion.

He didn’t stop there. The 42-year-old mathematician went on to design half a dozen other reflective surfaces for various applications – a few of them in collaboration with Perline – and they are like nothing you’d ever see on the bathroom wall.

Panoramic mirrors. Mirrors for use with high-tech surveillance cameras. Mirrors with odd, undulating surfaces that are fashioned with a computer-guided milling machine. And one wacky mirror that doesn’t yield a mirror image at all. If you raise one hand while looking into the curved surface, your reflection appears to be raising the opposite hand.

It’s not clear what use that one will have, beyond entertainment – Perline calls it “the vampire mirror” – but with his driver-side prototype, Hicks may be onto something.

Related: Innovation with MathThe Emperor of MathTimemath related posts

Tiny $10 Microscope

Tiny $10 Microscope

Researchers at Caltech, who developed the revolutionary imaging system, say that the devices could be mass-produced at a cost of $10 each and incorporated into large arrays, enabling high-throughput imaging in biology labs. The device could also broaden access to imaging technology: incorporated into PDA-size devices, for example, the microscopes could enable rural doctors to carry sophisticated imaging systems in their pockets.

The Caltech device uses a system of tiny fluid channels called microfluidics to direct cells and even microscopic animals over a light-sensing chip. The chip, an off-the-shelf sensor identical to those found in digital cameras, is covered with a thin layer of metal that blocks out most of the pixels. A few hundred tiny apertures punched in the metal along the fluid channel let light in. As the sample flows through the microscope, each aperture captures an image. One version of the microscope uses gravity to control the flow of the sample across the apertures. Another version, which allows for much better control, uses an electrical potential to drive the flow of cells.

Related: Video Goggles50 Species of DiatomsBlack and Decker Codeless Lawn Mower Review

Solid-State Drives For Laptops

SanDisk Drops Price On Solid-State Drives For Laptops

The products are scheduled to be available in the middle of this year.

SanDisk claims the SSDs are more than five times faster than the fastest 7,200 revolutions per minute hard-disk drives used in laptops. The vendor also claims its devices are more than twice as fast as SSDs that shipped last year.

The latest devices operate at a 40,000 vRPM, or virtual RPM, a metric used to compare the speeds of SSDs and HDDs. The SanDisk drives read and write data at 200 MBps and 140 MBps, respectively.

“With large capacities and aggressive pricing, SSDs are poised to enter mainstream corporate notebooks in 2009,” Rich Heye, senior VP and general manager of SanDisk’s SSD business unit, said in a statement.

SSDs use flash memory chips to store data, so have no moving parts. As a result, the technology is quieter, uses less power and is more reliable than HDDs. In addition, SSDs are faster and are more rugged.

Related: von Neumann Architecture and BottleneckNanotechnology Breakthroughs for Computer ChipsIBM Believes New DRAM will Double Performance$100 Laptops for the World

Appropriate Technology: Self Adjusting Glasses

Self Adjusting Glasses for 1 billion of the world’s poorest see better

What if it were possible, he thought, to make a pair of glasses which, instead of requiring an optician, could be “tuned” by the wearer to correct his or her own vision? Might it be possible to bring affordable spectacles to millions who would never otherwise have them?

More than two decades after posing that question, Josh Silver [a physics professor at Oxford] now feels he has the answer. The British inventor has embarked on a quest that is breathtakingly ambitious, but which he insists is achievable – to offer glasses to a billion of the world’s poorest people by 2020.

Some 30,000 pairs of his spectacles have already been distributed in 15 countries, but to Silver that is very small beer. Within the next year the now-retired professor and his team plan to launch a trial in India which will, they hope, distribute 1 million pairs of glasses. The target, within a few years, is 100 million pairs annually.

Silver has devised a pair of glasses which rely on the principle that the fatter a lens the more powerful it becomes. Inside the device’s tough plastic lenses are two clear circular sacs filled with fluid, each of which is connected to a small syringe attached to either arm of the spectacles.

The wearer adjusts a dial on the syringe to add or reduce amount of fluid in the membrane, thus changing the power of the lens. When the wearer is happy with the strength of each lens the membrane is sealed by twisting a small screw, and the syringes removed. The principle is so simple, the team has discovered, that with very little guidance people are perfectly capable of creating glasses to their own prescription.

Oxford University, at his instigation, has agreed to host a Centre for Vision in the Developing World, which is about to begin working on a World Bank-funded project with scientists from the US, China, Hong Kong and South Africa. “Things are never simple. But I will solve this problem if I can. And I won’t really let people stand in my way.”

Cool. A couple points I would like to make:

1) this professor is making a much bigger difference in the “real world” than most people ever will. The idea that professors are all lost in insignificant “ivory towers” is a very inaccurate view of what really happens.
2) Spending money on this kind of thing seems much more important for the human race than spending trillions to bail out poor moves by bankers, financiers… It sure seems odd that we can’t find a few billion to help out people across the globe that are without basic necessities yet we can find trillions to bail out the actions of few thousand bad actors.

Related: Adaptive EyecareBringing Eye Care to Thousands in IndiaRiver Blindness Worm Develops Resistance to DrugsStrawjet: Invention of the Year (2006)Fixing the World on $2 a DayAppropriate Technology