News of high technology: The first photo of a black hole
Every week in the world of high technology is something interesting: one sent rovers, others create artificial intelligence, while others are trying to take a picture of a black hole. We try to collect all the fun in the last 7 days, and now tell you!
1 Scientists have created an alternative rocket fuel, safe for the people! Their proposed technology may well become a standard form of rocket fuel of the future.
Current propellants are highly toxic: people immediately irritated eyes, shortness of breath occurs and nausea, temporary blindness and organ damage of the nervous system, liver and kidney. The recently proposed alternative is based on metal-organic structures with zinc, cobalt, and cadmium.
The researchers were able to create six types of fuel, which are tuned to different properties - for example, a certain ignition delay. This means that just around the corner to use in many space missions, but not for such duration as flights to Mars.
2 Electrical stimulation of the brain temporarily rejuvenates the human brain for 50 years! Recently, a team of scientists from Boston University has demonstrated a technique that is capable of restoring the working memory of 70-year-olds so that it begins to work as a 20-year-old young people.
In particular, we are talking about the theta rhythm, which will eventually lose their synchronicity, which leads to a deterioration of working memory. To prove the effectiveness of electrical stimulation, the researchers gathered a group of volunteers aged 20 to 60 years. They were given the task to view the image, pause, look at the second and the call how it differs from the first one. It is not surprising that young people have coped with this task much better than the elderly. However, the stimulation for 25 minutes has helped improve working memory by as much as 50 minutes. It is noteworthy that it has improved even in young people.
Seeing that stimulation could make a working memory of older people to be as effective as a 20-year-olds, the researchers decided to continue the study of the brain stimulation. In the future they intend to carefully study its effects on the brain in Alzheimer's disease.
3 Researchers at the University in Philadelphia found that some groups of bacteria can prevent the formation of pits road. Adding them to the existing solutions can be stopped and the formation of damaging agents induce the formation of a strong cement.
Interacting with antifreeze solutions, they are able to convert the calcium chloride to calcium carbonate, which is a natural cement and imparts additional strength to the road.
In the study, a series of concrete samples was established, sustainable solutions to the anti-ice. They were exposed to calcium chloride for 28 days and found that the concrete with bacteria content really is not destroyed, but becomes stronger. Due to the formation of particles of natural cement, concrete road became better able to withstand the acoustic vibrations arising from passing cars.
Somebody tell these bacteria to our "road builders"!
4 Meanwhile, published the first-ever real picture shadow of a black hole! Combining power telescopes enabled scientists to achieve resolution greater than the sensitivity of the space telescope "Hubble" a thousand times and get the first data on the most immediate surroundings of the central black hole of the galaxy M87, located in the constellation Virgo. The object has a mass of 6, 5 billion solar and is located approximately 53, 5 million light-years from us.
The researchers hope that the analysis of data obtained Event Horizons last year, will help to understand which of these two hypotheses is closer to the truth, and tell whether the form of the "donut" is changed or "dumbbell" in due course.
Are you ready to improve your memory by stimulating electricity? Are not you afraid? Their views can write in the comments or discuss in detail topics in our Telegram-chat.