Levitation isn't just for mystics anymore. DRS Presents has demonstrated airflow levitation of objects. A simple hair-dryer becomes a magical levitation device through an understanding of the principles of fluid flow.
Watch the video:
Perpetual motion machine is a device that operates continuously without any external source of energy. This kind of machine is considered as impossible.
Following video shows some attempts to make perpetual motion machines. But it can be shown that these machines take energy from the gravity (potential energy) of the earth. (Similar to an object that is falling from above which takes the energy from the gravity of earth)
As shown in the figure, always keep the largest tile at the corner and then fill the other tiles in descending order as shown by the arrows. The following video shows how I reached the 131072 tile. (Without undo button)
Java is a general-purpose, class-based and object-oriented programming language which is widely used all over the world. Java applications run on Java virtual machine (JVM). Java is one of the most popular programming languages in the world. Most of its syntax are derived from C and C++. Java is also used in game development. Game engines such as Ardor3D, DimensioneX Multiplayer Engine, Env3D, jMonkeyEngine, Jogre, Jogre, LWJGL use Java for programming.
Following video tutorial shows a collection of Java codes including: Bubble sort, Factorial, Fibonacci series, Mode of a list etc.
NaOH ( Sodium hydroxide / Caustic soda) is an alkali solution which is made up of Na+ and OH- ions. NaOH ( Sodium hydroxide ) or caustic soda is an alkali solution, made up of Na+ and OH- ions. NaOH is industrially produced by electrolyzing NaCl solution ( Brine
). As by products Chlorine gas and Hydrogen gas are produced. Solid sodium hydroxide is obtained by evaporation of that solution. It is mostly sold as, prills,
flakes
and cast blocks.
Theory
The electrons removal or addition, needed for the chemical reaction ( Interchange of atoms ) is done by a voltage applied by an external circuit.
The equation is given below.
2NaCl + 2 H2O → 2 NaOH + H2 + Cl2
Electrolyzing an NaCl solution at home
At home, you can easily use the method of electrolysis to make NaOH.
For electrodes pencils are used. And the container is separated into two chambers using a paper layer, in order to prevent the reaction between Chlorine and Hydrogen, which were by products of the reaction.
Python is a general-purpose, high-level programming language used by many programmers all over the world. Its syntax allows programmers to express concepts in fewer lines of code than would be possible in languages such as C, C++, Java. Python is also used in game development. Game engines such as Blender, Cocos2d, Delta3d, Nebula Device, Panda3D, PixelLight, Spring, WorldForge use python for scripting.
Following video tutorial presents some very useful python codes based on matrices in python.
It includes codes for, matrix multiplication, matrix addition, binary searching, average of a list, maximum of a list, list sorting , factorial, dot product of two vectors.
