2018
Entries

If we fix a source of radiation at the end of a lever rod with a magnifying glass in front of it such that the rod is long enough to magnify the minute unidirectional force and capable of rotation about an axis at the other end and hold that axis perfectly vertical by hand with the long axis of the lever rod perfectly parallel to the horizontal, the bar exhibits unidirectional motion not explained by ideomotor effect and the direction of motion can be predetermined by control and double blind study.The motion of the lever rod then rotates an electric generator fixed to the axis and the difference of electricity produced can be measured by a scale. More is ...

Sandia National Labs has developed a new medical diagnostic tool called “SpinDx.” The SpinDx was developed for conducting simultaneous multiplexed immunoassays and white blood cell counts in less than 15 minutes. The technique is based on centrifugal microfluidics, or “lab-on-a-disk” technology, which uses centrifugal forces to manipulate samples and reagents through microfluidic channels on the disk. The device can determine a patient’s white blood cell count, analyze important protein markers, and process up to 64 assays from a single sample in a matter of minutes.

To obtain blood cell counts, blood samples are mixed on the disk with labeling agents to label leukocytes prior to the centrifugation. The cells then separate along a pre-loaded density media based on their size ...

Fuel cells that directly convert chemical energy into electricity meet the demands for the clean energy industry of the future, primary owing to their striking advantages of the high-energy conversion efficiency that is not limited by the Carnot cycle, low/zero emission, and reliable and simple structure. Currently, a barrier that limits the development of the conventional cation-exchange membrane direct liquid fuel cells (CEM-DLFCs) is that the CEM-DLFCs need additional base to offer both alkaline environment and charge carrier. We develop a Na+-conducting direct formate fuel cell (Na-DFFC) that is operated in the absence of added base shown in Figure 1. The Na-DFFC consists of a membrane electrode assembly (MEA), which is composed sequentially of an anode electrode, an ion ...

A method of time travel and time reversal was put forward in the 2017 Create the Future Design Contest. This entry is about improvement in the efficiency of the claimed device.

Image 1 shows spring SP with bigger inner diameter but lesser spring constant. Threads TH1 and TH2 are fixed to the two ends SPR and SPL of spring SP. Threads TH1 and TH2 run parallel to the direction of gravity and connected to fixed points SR and SL on support S. Thread TH3 starts from fixed point SX on spring SP at one end passes through the inside diameter in the upper half near plane THU and connected to point SY on spring SP at the other end. ...

We have developed a lightweight, quiet, portable emergency power pack for use in any field. Unlike the current lithium ion batteries used by the military, which have low energy density and pose safety concerns, our system can reduce fatigue on soldiers by safely providing them with ten times the energy stored in current lithium-ion batteries (1500 Wh/kg vs. 150 Wh/kg). The emergency power pack uses our patented aluminum fuel which can be reacted with almost any water source, including waste water, to generate heat and hydrogen on demand. The hydrogen is fed to a fuel cell to generate clean electricity safely and silently.

The emergency power pack has three distinct features: a disposable fuel bag which stores the reactive ...

Human life is most precious as resurrection is still impossible. Of course we don’t have enough guts to take risks with our life. This is the main reason for which man has gone through the quest of some alternative go. Finally the result is unmanned aerial vehicle (UAV) which can do the complex works of man in a simple way without any major risk. The UAV is a type of aircraft which has no on-board crew or passengers. A UAV differs from a cruise missile, in that a UAV is recovered after its mission while a cruise missile impacts its target. While speaking about UAVs we always think about a quadcopter. They can fly anywhere and transmit the information ...

On Accessing the Inaccessible by Hovercraft

As climate change accelerates so also does the difficulty in the navigation of flood plains, wetlands and deltas and only an amphibian can handle the changing topography

Enter the modern hovercraft

Recent advances in hovercraft technology gathered from operating experience over the past three decades show machines with greater efficiencies

In Ontario Canada access to the Ring of Fire in order to extract the high value ores is proving quite controversial because of the wetlands. Expensive schemes for roads or railways into the region have raised concerns about the
impact on fragile surfaces and the long term effects on drainage patterns and the like.

Winter road season is shortening due to climate change ...

Light-emitting diodes (LED), like any semiconductor, emit heat during their operation. This is because a significant portion of electrical energy (75% – 85%) is converted to thermal energy which results in an increase in the temperature of the LED. Thermally stressed LEDs lose efficiency and their valuable technical parameters. If nothing is done to control the increasing temperature of the LED, the PN junction may fail, possibly resulting in thermal runaway and catastrophic failure.

Thermal management of LED lighting fixtures (or LED lamp) involves the transfer of thermal energy from printed circuit board (PCB) on which LEDs are mounted. This can generally be accomplished through the use of heat sink, which dissipates heat just by means of natural thermo ...

Generally bikes are built on the range of human sizes and have only the ability to adjust the distance between the saddle and the crank shaft and - limited, between saddle and handlebars. With increasing age, the human body size changes, making it inappropriate to use one bike whole or only part of the growth cycle kid - young - teen. On the market there are some limited solutions adjusting the size of a human and they bike on size refers to the use of small wheels with diameters between 12 to 20'' variation saddle position (long rods) and the use of long handlebars, tilt. In childhood growth is very rapid, which lead to a short-term use of a ...

At one time or another we have all had to deal with driving into the sun. My idea is to have a small tinted area that is able to follow the blinding sun based on the position relative to the driver. The clear material would be placed on the inside of the windshield for a retrofit or in the case of a new vehicle, it could be part of the original glass.

The material (similar to the auto-darkening sunglasses available) would have a superfine grid trans-versing horizontally and vertically which would darken when voltage is applied to the two intersecting points. The intensity would be varied based on a user setting which in turn raises the amount of voltage ...

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