Molotov Cocktail (Petrol Bomb)

MOLOTOV COCKTAIL (PETROL BOMB)

INTRODUCTION

Molotov cocktail is term for the simple incendiary weapon. It is also known as petrol bomb, fire bomb and benzine torch. They are relatively easy to make and may be used by irregular paramilitary forces and rioters. These bombs are also used to commit arson. These bombs are first used in Spanish civil war between July 1936 to April 1939, before they became to known as “Molotov cocktail”.

MECHANISM

A Molotov cocktail consists of a glass bottle apart filled with flammable liquids. The liquid will typically be gasoline, alcohol, menthol, or ethanol. The mouth of bottle is closed with a cork or other type of tight sealing made up of glass, plastic, or rubber. A cloth rag is fixed securely around the bottle mouth. The weapon is used by first soaking the rag in flammable liquid immediately before use, lighting the rag and throw the bottle at the target. The bottle breaks when it lands, spilling the liquid over target, it is ignited by the burning rag.

LEGAL OR ILLEGAL

Such a thing can cause a lot of damage, and may kill people. So, it is illegal in many countries to make or possess it.

Comments

Working of the heart

WORKING OF HEART Blood from different parts of the body comes to right atrium, when it expands. Blood is brought from upper part of the body through superior vena cava and from lower part of the body through inferior vena cava. When right atrium contracts, the blood goes to right ventricle. The atrioventricular aperture is closed by a valve after blood transfer. Valves prevent backflow of blood when the atria or ventricle contracts. When the right ventricle contracts, blood forced out to the lungs for oxygenation through pulmonary artery, guarded by another valve. In lungs the exchange of gases takes place, blood give off carbon dioxide and takes in oxygen from lungs. Pulmonary vein brings oxygenated blood from lungs to the left atrium, as it relaxes. When the left atrium contract, the blood is transferred to left ventricle, which expands. The aperture between left atrium and ventricle is guarded by another valve. The wall of ventricle is three or

Neuron Structure And Functions

NEURON STRUCTURES AND FUNCTIONS Functions of nervous system:- 1. Sensory input, that is, the detection of stimuli by the receptors or sense organ. 2. Transmission of nerve impulse to brain or spinal cord, which generates appropriate response. 3. Motor output, that is, carrying out of response by muscles or glands, which are called effectors. Two types of cells constitute our nervous system. One is neuron and another is neuroglia. Neuron conducts impulses and neuroglia provides support and protection to neuron. A neuron consists of a cell body called cyton and two processes dendrites and axon. Dendrites:- Dendrites are hair like extensions connected to cyton. They receive stimulus, which may be physical, chemical, mechanical or electrical and passes it to cyton. Cyton:- It is the cell body with a central nucleus which is surrounded by cytoplasm. Axon:- From one side of the cyton arises a cylindrical process filled with cytoplasm. It is called axon.

Response And Coordination In Plants

RESPONSE AND COORDINATION IN PLANTS Plants movements Tropic movement:- The movements of organism in the direction of stimulus or away from stimulus are known as tropic movement or tropism. It is positive if directed towards the source of stimulus and negative if directed away from stimulus. Different types of tropic movements:- Phototropism:- The tropic response of organism to light is called phototropism. If a young green plant takes light from one direction only, it bends towards the light source. So, the stem said to be positively phototropic. Geotropism:- The tropic response of organism to gravity s called geotropism. If a growing region of plant placed horizontally, the stems tips grow away from pull of gravity while the root grows in direction of gravity. The stem is negatively geotropic and the root is said to be positively geotropic. Hydrotropism:- The growth of plant part towards or away from water is known as hydrotropism. The

Bright Mind

Search This Blog