Geek magazine hacker daily blog

This is Science: microguns and nanokernels

1 year ago


What comes to your mind when you hear the word "down"?! Probably, something massive with a big destructive force. But what if you hear "a micro gun"?

Before the decline of 2015 in the prestigious scientific ACSNano log there was unusual article. Yes not just article, and the whole absolutely tall tale about microguns and microballistics!

Read more »


The seventh period of the table of Mendeleyev is filled now, and it officially

1 year ago


On December 30 last year the International union of theoretical and applied chemistry (International Union of Pure and Applied Chemistry) declared that discovery of chemical elements 115, 117, 118 and 113 is confirmed officially. As for elements 115 and 117 of elements of the table of Mendeleyev, they were opened by the Russian Joint Institute of Nuclear Researches (JINR), Livermorsky national laboratory (USA) and Okridzhsky national laboratory (USA).

As for the 118th element, his pioneers called OIYaI and Livermorsky national laboratory. The 113th element was opened by specialists from the Japanese institute RIKEN. It is interesting that official confirmation of opening of the called elements took more than 10 years.

Read more »


View of the Emperor of illnesses. Part one

1 year ago

Praefatio


In the modern world cancer is one of basic reasons of death. According to WHO data in 2012 died 8.2 million people around the world from cancer, and the quantity of the new registered cases same year made about 14 million. By amount of death cancer concedes only to heart diseases. For this reason, it seems to me, it will be rather interesting and it is useful to try to deal with this disease that we together also will try to make.

Read more »


Юйту, китайский луноход, помог собрать важнейшую информацию о Луне

1 year ago

Китайский луноход всем передает привет (источник: CNSA/CCTV)

Помните ли вы еще о Юйту? Вероятно, да, хотя некоторые читатели могли о нем вообще ничего не слышать, если тема космоса не является приоритетом. Так вот, Юйту — это китайский луноход, который успешно прилунился в 2013 году, и начал изучать естественный спутник Земли. К сожалению, что-то пошло не так, и луноход с наступлением лунной ночи в 2014 году не смог спрятать чувствительные к перепадам температур узлы и элементы в короб с обогревом.

Луноход просто не смог сложиться, как было запланировано инженерами. С 2014 года о Юйту нет практических никаких новостей. Но, как оказалось, ранее система отправила на Землю данные, которые могут прояснить некоторые особенности происхождения Луны. В частности, информация, переданная Юйту, позволяет лучше узнать тот период времени, когда на Луне еще случались небольшие извержения вулканов.

Read more »


DIY powder for the dishwasher: we sort industrial means and we improve the recipe

1 year ago


Attention! In the recipe with bleach danger of corrosion of metal was found! It is not recommended in standard application!

In the last publication we created cheap powder for the dishwasher from acorns and matches of the calcinated soda and laundry detergent. In this I will tell about how it is possible to improve it by means of oxygen bleach and where it is possible to purchase components for more advanced version. Let's place emphasis on efficiency of washing, but even at the same time the price will not go beyond 100 rubles/kilogram. And still there will be a recipe of a conditioner with cost value around 1 ruble for liter. As fairly noticed amarao, occupation not for all and it is simpler to much to use ready tablets. But in similar experiments with household chemicals there is something from the childhood, the first experiments on mixing of soda with vinegar and aerated water with mint candies. So the notable economy here after all is secondary. Let's have a good time) If laziness to read someone all text — at the end of a post there will be detailed recipes with recommendations.

Read more »


The microscope of new type allows to remove the course of chemical reaction in real time

1 year, 1 month ago


The majority of modern microscopes (among which there are very complex systems) are very good, but they can be used only for receipt of static "picture". Scales of immersion of the person in a microcosm cannot but admire, but nevertheless the speed of work of systems of this kind is not too high. It is an obstacle, for example, for carrying out video filming of chemical reactions.

Until recently it was just impossible. Nevertheless, scientific MIT managed to create system, a prototype of an atomic and power microscope which works 2000 times quicker than any commercial product. And video of chemical reaction already managed to be received (in continuation). "People can see, for example, condensation, dissolution or loss of substance in a deposit in real time" — the representative of command of the project, professor Kamal Yusef-Tumi (Kamal Youcef-Toumi) reported.

Read more »


Camera for methane

1 year, 1 month ago

The saturation of red corresponds to excess of concentration of methane over environment level. In the right photo — the ventilated cowshed

Methane (CH4) — one of the most important energy carriers, a valuable resource and exclusively noxious greenhouse gas: its greenhouse effect in 25 times more, than at a carbon dioxide gas. At the same time large-scale emissions of methane are difficult predictable, it is heavy to find them. Gas has no color and a smell so even methane leak indoors can take place unnoticed. What is characteristic, still there were no remote detectors of methane with high sensitivity. Now is.

The group of scientists of the Stockholm and Linchepingsky universities (Sweden) developed the special remote detector HyperCam Methane which works by the principle of a photo and video camera. On the screen methane is colored in red color and is very well noticeable.

Read more »


One SBM it is good, and two it is better

1 year, 1 month ago


In the previous article about weak household radiation I used the SOEKS Defender dosimeter equipped with the SBM-20-1 counter. As many commentators noted, its accuracy has not enough reliably to measure a weak background, and I had to go on some tricks to find potassium-40 radiation in bananas. Now to me for testing more advanced SOEKS Quantum device got. Thanks to use at once of two SMB-20-1 Geiger counters, measurements are performed quicker and more precisely. Results are held in non-volatile in remembrance devices and can be unloaded on PC or Mac for the further analysis. Quantum is that exceptional case when the domestic gadget has no twin brother with other label on Ali, and besides is known abroad.

Read more »


The American scientists learned to receive alcohol with purity of 99% by means of light

1 year, 1 month ago


Specialists from Rice University developed a method of "optical distillation" of alcohol. According to scientists, led by Naomi Helas (Naomi Halas), this method demands much smaller costs of energy, than in case of thermal distillation.

Authors of a technique claim that the last several thousands of years heated water incorrectly, since a vessel bottom. Actually, heating of water should be begun on top — such method is the most power effective as it is not required to heat all volume of liquid.

Read more »


Personal hydrogen drive (concept)

1 year, 1 month ago


Many of us (especially inhabitants of private houses) would like to have own, personal electric generator and to be independent of the existing utility structures. Would be to put cool at himself in the yard the wind-driven generator or to make a roof of the house of the solar battery and even not to bring an electrical wiring. And seemingly modern technologies can provide worthy devices of electrogeneration (modern solar batteries already have acceptable efficiency and term of operation, to wind-driven generators of also critical notes is not present), but the systems of accumulation and storage of the electric power most often provided by rechargeable batteries have a number of essential shortcomings (the high cost, low capacity, short term of service, bad utilization properties at low temperatures etc.). And these shortcomings do all concept of individual, renewable sources of the electric power, unattractive for ordinary citizens.
In this article I suggest to get acquainted with the concept of the individual hydrogen drive of the electric power which, in some perspective, can replace classical rechargeable batteries.

Read more »