News high-tech: the first photograph of a black hole

Every week in the world of high technology, there is something interesting: some send Rovers, others create artificial intelligence, and others are trying to photograph a black hole. Tried to gather the most interesting in the last 7 days, and now will tell!

1. Scientists have created an alternative rocket fuel, safe for people! The proposed technology may well become the standard form of rocket fuel of the future.

Modern rocket fuel is very toxic people from irritated eyes, dyspnea and nausea, temporary blindness, and organ damage nervous system, liver and kidneys. A newly proposed alternative based on metal-organic structures with the contents of zinc, cobalt and cadmium.

The researchers were able to create six types of fuel that are configured on different properties — for example, by a delayed ignition. This means that not far off use in many space missions, but not for such long 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 have demonstrated a technique that is able to restore working memory 70-year-olds so that it starts working like a 20-year-old young people.

In particular, we are talking about theta rhythms, which over time lose their synchronicity, which leads to 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, to pause, to look at the second call and how it differs from the first. It is not surprising that young people coped with this task much better older. However, stimulation for 25 minutes has helped to improve working memory by as much as 50 minutes. It is noteworthy that it has improved even in young people.

Электрическая стимуляция мозга

Having established that stimulation can make the working memory of older people as effective as 20-year-old, the researchers decided to continue the study of brain stimulation. In the future, they intend to carefully study its effects on the brain in Alzheimer’s disease.

3. Researchers from the University in Philadelphia found that some groups of bacteria can prevent the formation of road pits. Adding them to existing solutions, you can stop the formation of destructive substances and to provoke the formation of a strong cement.

Interacting with de-icing solutions, they are able to convert calcium chloride to calcium carbonate, which is nature’s cement, and makes the road more durable.

Дорожная яма

The study was created the series of samples of concrete, resistant to solutions against ice. They were exposed to calcium chloride for 28 days and found that the concrete content of bacteria do not destroyed, but becomes stronger. Due to the formation of particles of natural cement, the concrete road became better to withstand the acoustic vibrations resulting from passing cars.

Somebody tell me about these bacteria our “road”!

4. Meanwhile, published the first ever actual photograph of the shadow of the black hole! Combining capacities of telescopes has allowed scientists to reach a resolution that is greater than the sensitivity of a space telescope “Hubble” a thousand times and receive the first data at the immediate vicinity of the Central black hole of galaxy M87, located in the constellation Virgo. The object has a mass of 6.5 billion solar, located about 53.5 million light years from us.

Черная дыра Поэхи (Powehi)

The researchers hope that the analysis of data obtained from Event Horizons in the past year to understand which of these two assumptions is closer to the truth, and will tell about how does the form of this “doughnut” or “dumbbell” over time.

Are you ready to improve your memory through stimulation by electricity? You are not afraid? Your opinion you can write in the comments or discuss topics in our Telegram chat.

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