Here is the first 3D-printed metal firearm

The Nokia Lumia 1020 can transform into a telescope

"The Nokia Lumia 1020 is known for its superior camera, which is used to capture high-resolution images with a 41-megapixel lens. The Open Space Agency had the idea of using this feature to create a robotic telescope called Ultrascope, which was developed in collaboration with Microsoft.

This telescope is 3D printed and measures one meter tall by 65 cm wide. It allows users to capture images of the stars from their own backyard. The operation is simple: a Windows computer locates the ISS space station and transmits its information to an Arduino controller integrated into the telescope.

The telescope motors are then activated to position it correctly. The Nokia Lumia 1020 then takes photos that are sent to the cloud for further processing. Ultrascope is still in beta phase and plans can be downloaded from the Open Space Agency website for those interested.

Ultrascope is an excellent example of how technology can be used to make astronomy accessible to everyone. With a cost of around $500 for parts and materials, it is much more affordable than traditional telescopes. Additionally, the fact that it is computer-controlled and uses a smartphone camera means that even beginners can use it without worrying about complicated settings.

The Ultrascope project is also open source, which means that anyone with the necessary technical skills can build their own telescope. The plans are available for free on the Open Space Agency website, and users can also contribute to improving the project by submitting suggestions or modifications.

Ultimately, Ultrascope is an inspiring example of how technology can be used to democratize astronomy. With a little know-how and ingenuity, it is now possible to build your own telescope from 3D-printed parts and cheap materials, and capture amazing images of the stars from your own backyard.

A smartphone equipped with a pico projecto

A smartphone equipped with a pico projecto In 2010, Samsung had mentioned its project of a smartphone equipped with a pico project or. However, this revelation had fallen into oblivion. But in February 2012, at the Mobile World Congress in Barcelona, Samsung surprised everyone. The Samsung Galaxy Beam projects the content of the phone onto a wall. The Korean manufacturer announced the commercialization of the Samsung Galaxy Beam , the first smartphone equipped with a pico projector, for the first half of 2012, allowing it to project onto a wall any content present in the phone. The 15 Lumens pico projector can project a clear image equivalent to a 127 cm screen! Although the image quality is decent in a lit room, it is recommended to watch the projection in a dark place. Samsung has integrated several features to make very professional presentations, including the Quickpad interface, which is very useful as it displays a mouse pointer on the smartphone's screen. It is thus possible to project a web page onto a wall and use the Galaxy Beam's screen as a mouse. This smartphone runs on Android 2.3 and offers convincing features, including a 4-inch touch screen, a 5 MP digital camera with flash and autofocus, a 1.3 MP front camera, classic 3G+, Bluetooth and Wi-fi connectivity, an 8 GB internal memory + MicroSD slot. The Samsung Galaxy Beam's battery promises three hours of autonomy in projection mode. This smartphone is sold for about 450 euros

Samsung tests 5G on a train traveling at 100 km/h.

Samsung tests 5G on a train traveling at 100 km/h.

Samsung has announced a demonstration of 5G technology performance that will take place 

from October 17th to 19th in Saitama, near Tokyo. With the help of Japanese operator KDDI, 

Samsung has succeeded in transmitting data at peak speeds of 1.7 Gbit/s via an uplink and 

downlink on a 1.5-kilometer railway line. Users can download 8K videos and stream 4K video 

files. However, it will still be necessary for this to work with connected cars connected to each 

other. The demonstration was carried out using several base stations installed outside, 

equipped with a semi-standard 5G router. However, no information was provided on the 

frequency bands used. The key to this scenario is the devices' ability to seamlessly move 

between cells. At 100 km/h, the terminal connects to each antenna for a few seconds. Once 

the download is initiated, data transfer is maintained by a mechanism called "handoff." This 

means that the terminal can maintain the connection to the antenna even when the user is 

moving at high speed.

It is important to note that this test was only carried out on a 1.5 km stretch between the two 

stations. Other tests were also carried out on a moving car at 200 km/h in South Korea in 

September 2017. However, ships have more complex environments, with structures that are 

more difficult for electromagnetic waves to penetrate. Therefore, the technology will also need 

to work in more challenging conditions.

In summary, Samsung and KDDI have succeeded in transmitting data at peak speeds of 1.7 

Gbit/s on a 1.5 km railway line, allowing users to download 8K videos and stream 4K video 

files.