New articles in Science
What is the circumference of the earth
What is the circumference of the earth The circumference of the earth is identified based on the longest parallel is the equator. However, recent measurements of this parameter show that the common view of it is not always true.
Science
Rocket
Rocket fuel is the types and composition Propellant is the chemical mixture that is burned to produce thrust in rockets and consists of a fuel and oxidizer. Fuel is a substance that burns in combination with oxygen and releases gas to bring...
Science
What seas wash Russia
What seas wash Russia Russia is a great naval power. The total length of its Maritime borders is 37636, 6км. the country is washed by 13 seas, 12 of which belong to three of the world's oceans: Pacific, Atlantic...
Science
How to build a plan accelerations
How to build a plan accelerations The construction plan acceleration is one of the solutions to the problems of the status of links of the mechanism. For such constructs must be defined kinematic diagram of the mechanism and function of its...
Math
Why cant you divide by zero
Why can't you divide by zero Divide by zero is impossible, every schoolboy knows that, but to many it is unclear why. The reasons for this rule can be found only at the high school, and then only if you study...
Math
How to translate the atmosphere in the bars
How to translate the atmosphere in the bars "Atmosphere" is a unit of pressure that is not a member of the international system SI and is equal to the atmospheric pressure measured at the level of the World ocean. The exact numeric definition...
Popular
How to grow emerald
How to grow emerald Emerald – a precious stone of a high class. Some samples of emeralds can cost more than diamond. You can meet emerald in the most exquisite jewelry. Did you know that emerald can be grown...
Science
How to find the angle between the crossing straight lines
How to find the angle between the crossing straight lines To determine the magnitude of the angle between the crossing straight lines, you need both a direct (or one of them) moved to a new position by parallel transfer to the intersection. You should then...
Math
How to calculate arithmetic mean
How to calculate arithmetic mean Higher arithmetic - an important concept used in many branches of mathematics and its applications: statistics, probability theory, Economics, etc. Average an arithmetic can be defined as the General notion of average.
Math
How to find the area and volume of a cube
How to find the area and volume of a cube A cube is a rectangular parallelepiped of which all edges are equal. Therefore, the General formula for the volume of the rectangular prism and the formula for its surface area in the case of Cuba...
Math
How to get oxygen
How to get oxygen The value of oxygen cannot be overemphasized. Entering into the cells and oxidizing the organic matter, the release of oxygen provides the necessary energy for life. To ensure a comfortable human life, the content of...
Science
How to temper steel
How to temper steel Hardening steel as the heat treatment is a complex process and causing internal and not visible to the naked eye changes in the structure of steel. But along with this hardened parts have properties quite...
Science
What is variable in math
What is variable in math The first thing children learn in school algebra course are variables and numbers. Contained in the equations, the unknown variable is usually denoted by an arbitrary letter. When solving this problem it is necessary to...
Math