Free technical library
How big is our galaxy? Detailed answer
Directory / Big encyclopedia. Questions for quiz and self-education
Comments on the article
Did you know?
How big is our galaxy?
Our Galaxy (the Milky Way) has a complex shape, in the first approximation it can be compared with a giant lentil (lens).
The vast majority of galactic matter (stars, interstellar gas, dust) occupies a lenticular volume about 100 thousand light-years across and about 12 thousand light-years thick in the central part. Another (significantly smaller) part of the galactic matter fills an almost spherical volume with a radius of about 50 thousand light years.
The centers of the lenticular and spherical components of the Galaxy coincide.
Author: Kondrashov A.P.
Random interesting fact from the Great Encyclopedia:
Why did King Mithridates want to but could not commit suicide?
King Mithridates V of Pontus was poisoned by unknown people at a feast. His son Mithridates VI, who sat on the throne, from his youth began to take various poisons in small doses in order to develop immunity. Being at an advanced age and under the threat of captivity by the insurgent people, he himself wanted to commit suicide, but the poison, as one might expect, did not work. Mithridates had to ask for the favor of his guard, who killed him with a sword.
Test your knowledge! Did you know...
▪ What is the size of the largest known meteorite crater in the solar system, and where is it located?
▪ What do bananas grow on?
▪ Why are Japanese suicide pilots called kamikaze?
See other articles Section Big encyclopedia. Questions for quiz and self-education.
Read and write useful comments on this article.
<< Back
Latest news of science and technology, new electronics:
Artificial leather for touch emulation
15.04.2024
In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>
Petgugu Global cat litter
15.04.2024
Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>
The attractiveness of caring men
14.04.2024
The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>
Random news from the Archive MAXM22510 - isolated RS-485 with built-in power
16.11.2018
The new MAXM22510 and MAXM22511 are isolated (2,5kV) full-duplex RS-485 drivers with integrated power from Maxim Integrated. New interfaces do not require external wiring, including capacitors in power circuits. A simple connection to the microcontroller allows you to quickly set up an isolated miniature RS-485 interface.
The MAXM22510/11 have very good EMC performance and significantly higher power node efficiency than competing solutions.
The drivers are powered by 3,3V and have 2 baud rates - 500 kbps (MAXM22510) and 25 Mbps (MAXM22511). Chips are produced in small-sized LGA packages 9,35 x 11,5 mm, and the operating temperature range is wider than the standard industrial one - from -40°C to +105°C.
|
Other interesting news:
▪ Cats are hunting
▪ Silk thread conducts light
▪ Mussel paste
▪ Catch the neutrino
▪ Microplastics found in plant leaves
News feed of science and technology, new electronics
Interesting materials of the Free Technical Library:
▪ section of the Electrician website. Article selection
▪ Homer article. Famous aphorisms
▪ article Does a fish have a heart? Detailed answer
▪ article The functional composition of Toshiba TVs. Directory
▪ article Electric thermometer, 20-45 degrees. Encyclopedia of radio electronics and electrical engineering
▪ article Cutting magnetic lines of force. physical experiment
Leave your comment on this article:
All languages of this page
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua
2000-2024