Scientific search

Yandex.Patents

Search by patents.
Yandex with the assistance of the Federal Service for Intellectual Property (Rospatent).

More than 2.5 million patent documents are freely available.

In the search for documents you can find:

• applications for inventions of the Russian Federation (from 1994 to present);
• descriptions of inventions to copyright certificates of the USSR (from 1924 to 1993);
• patents of the Russian Federation (from 1994 to the present).

Filters: by keywords, number, title, full text of the patent, author, etc.

For the found document, a list of patents is automatically compiled in which it is mentioned and referred to, and the service also selects similar documents.

Google Lens

Image recognition and visual analysis technology based on neural network.
That is, the technology sees the picture, finds out what is shown in the picture, based on the huge available database. And when he learns what is shown in the picture, he offers the available information about the presented subject.

For example, we offer Eiffel Tower and get an article - when it is built, by whom, geographical location, ratings, hours of operation and other interesting facts.

If it is a simple house, the system may guess the city or country or find nothing.

If it is a dish, it will try to find out the name and recipe.

Explore the flora and fauna around you, such as the name of a beautiful flower on a flowerbed or a dog breed you saw in the park.

Did you see a great dress or the perfect chair for your home? You can find similar items in your wardrobe or interior without describing them.

You can use the app to add events to your calendar, create routes, dial phone numbers, use an interpreter, etc.

Wolfram|Alpha

Search on Internet and on the internal rather extensive knowledge base (which was typed from Internet and prepared for issuance) and a set of computational algorithms.

The main direction of the service, not only to find information, facts on Internet, but to anticipate, find in all sorts of sources, reduce to tables, charts, graphs ...

If this is not done exactly as you need or Not exactly what you want, pay, but you will find, pick up and give out in a convenient form.

Elementy

Search on the scientific and popular science sites runet.
So far, 3,500 websites have been indexed: websites of universities, research institutes and libraries, LJ-communities, scientists blogs and even pages of enthusiasts on the "People" A fantastic atlas of the butterflies of Crimea with illustrations.

The world of mathematical equations.
The mathematical search system.
While only looking for formulas and equations in Wikipedia and on Eqworld. Ipmnet.ru. Specify any function of the cosine or its fragment - get web pages where such a function is mentioned.