The smallest flashlight Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

The smallest flashlight

17.01.2007

In 2000, 15-year-old American Barclay Henry patented the smallest flashlight, and recently opened his own business with his father and brother and began to produce his invention.

This is a plastic cap with two white LEDs, put on a 9-volt Krona-type battery. The cap has a switch for three positions: on, off, reduced brightness (only one LED is on). One ordinary battery is enough for 50 hours of burning at maximum brightness, an alkaline battery for 75 hours, a lithium battery for 200 hours.

As for the service life of LEDs, it is one hundred thousand hours, or 11 years of continuous burning. Despite the rather high price ($ 25), the flashlights diverge well, whole batches are purchased for the American army.

<< Back: carbon dioxide glass 18.01.2007

>> Forward: Microbes in a squirrel wheel 16.01.2007

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Processors Intel Xeon E5-2600/1600 v3 10.09.2014

Intel introduced the Intel Xeon E5-2600/1600 v3 processors, primarily designed for data centers. The manufacturer notes numerous improvements that have provided a significant (up to three times) performance improvement compared to previous generation processors.

Intel Xeon E5-2600/1600 v3 processors are available in 22nm technology with bulky Tri-Gate transistors
The processors are targeted for use in servers, workstations, data storage and network infrastructure equipment. They are designed for a variety of workloads, including data analysis, supercomputing, telecommunications and cloud services, and IoT data processing.

Among the capabilities of the Xeon E5-2600 v3, the manufacturer highlights work as part of a software-defined infrastructure (Software Defined Infrastructure, SDI), the basis of cloud computing. It provides the required flexibility and scalability of resources through software implementation of the required configuration. The new processors have much-needed features in this area, including a cache monitoring feature that allows for more accurate load balancing; telemetric sensors that allow you to get accurate data on the load of the CPU, memory and I / O subsystem. All this gives you the ability to more precisely manage the system, increasing the efficiency of resource use and reducing the total cost of ownership.

Intel Xeon E5-2600/1600 v3 processors are available in 22nm technology with bulky Tri-Gate transistors
The processors are configured with up to 18 cores and up to 45 MB of last-level cache. The extension of the Intel Advanced Vector Extensions 2 (Intel AVX2) instruction set has significantly increased performance on operations with integers.

There is a significant increase in "virtualization density": Xeon E5-2600 v3 processors support more virtual machines per server (up to 70% superiority over the previous generation). Added support for DDR4 memory. In addition, the Intel Advanced Encryption Standard New Instructions (Intel AES-NI) command set has been improved, which made it possible to speed up encryption and decryption operations (up to two times better than the previous generation).

The processors are manufactured using 22nm technology with bulky Tri-Gate transistors.

According to the manufacturer, the Intel Xeon E5-2600 v3 processors have the world's best energy efficiency (performance per unit of power consumption).

The Intel Xeon E5-2600 v3 processors can work together with the Intel Communications Chipset 89xx chipsets for communications and networking equipment.

There are a total of 26 Intel Xeon E5-2600 v3 processor models available. Their prices range from $213 to $2702. There are six models of Intel Xeon E5-1600 processors for workstations priced from $295 to $1723.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews