Human remains have no place in a museum. Free Technical Library News

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

Human remains have no place in a museum

20.10.2023

The American Museum of Natural History has decided to exclude human skeletons and bone objects from its permanent display. The museum's collection contains more than 12 thousand such exhibits.

A particularly significant step was the removal of the remains of 2200 Native Americans, complying with a federal law passed more than 30 years ago requiring the remains to be returned to descendants. The museum has already returned the remains of 1000 people under this law.

The collection also includes the bones of five adult African-Americans found in a Manhattan cemetery for the enslaved in 1903.

The museum's medical collection, which includes the remains of about 400 New Yorkers who died in the 1940s, will also be removed from display. These remains were used in medical schools as teaching materials.

The museum director explained that the decision to remove the remains was out of respect for the victims, given that some of them were victims of exploitation and violence. He also stressed that in the past, scientists have used human remains for research related to misconceptions about the superiority of some people over others.

<< Back: Mini PC SZBOX S100 21.10.2023

>> Forward: Logitech Zone Wireless 2 headset 20.10.2023

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

Ultra-slim camera without optical lenses 12.07.2017

Traditional cameras, even the smallest ones that are installed in mobile phones, cannot be very thin due to the presence of an optical system in them, lenses that must have a strictly defined shape and size. But researchers at the California Institute of Technology have developed a fundamentally new type of camera that replaces the lenses with an optical phased array (OPA). And this grating performs the same role as the large optical components, it allows you to control the light that hits the sensor so that the sensors can form a complete image.

Lenses with a certain radius of curvature refract the light entering them and allow it to be focused on the surface of the sensor. An optical phase grating consists of a set of photodetectors, each of which operates with a strictly defined delay, which makes it possible to detect light with a given phase value. This, in turn, allows the flat camera to "look" in different directions and focus on different objects.

The high speed of the phase grating allows the camera to consistently focus on small parts of the future image. At the same time, the change in the direction of the "look" of the camera is carried out very quickly, for periods of time calculated in femtoseconds.

Phase gratings have been used for a long time in radio communications and radar technologies. These arrays consist of many transmitter elements emitting the same signal with a slightly different phase. The electromagnetic waves of these signals interact with each other, which leads to the fact that only a signal that propagates only in a certain direction is amplified. And such a grating is capable of emitting a focused beam of electromagnetic waves, the direction of which can be controlled with sufficiently high accuracy without the need for moving mechanical components.

The optical phase grating consists of 64 photosensitive elements and is a thin layer of silicon on which all the necessary photonic elements are created. This component performs two functions at once, the function of a lens and the function of a light sensor, which, in theory, should significantly reduce the cost of future digital cameras. In addition, the digital control of the optical grille allows you to switch it to several modes, in the mode of a conventional lens, in a wide-angle lens, the so-called "fisheye", and in a telephoto lens mode.

See full Archive of science and technology news, new electronics

All languages of this page

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