What do ❤ mean?
What do ❤ mean?
A common usage of the red heart emoji is to convey affection or love. If a text says “I ❤️ u,” it can be read as either “I love you” or “I heart you.”
What is a low explosive?
Low explosives are mixtures of chemicals that burn very rapidly, but subsonically (as opposed to supersonically), meaning that they “deflagrate.” They consist typically of fuel and an oxidizer. The black powder used in fireworks is one example of a low explosive.
What are examples of low explosives?
Examples of Low Explosives include: Black Powder, Smokeless Powder, and Flash Powder.
Is gunpowder a low explosive?
Gunpowder is classified as a low explosive because of its relatively slow decomposition rate and consequently low brisance. Ignition of gunpowder packed behind a projectile generates enough pressure to force the shot from the muzzle at high speed, but usually not enough force to rupture the gun barrel.
What is the most explosive substance?
PETN. One of the most powerful explosive chemicals known to us is PETN, which contains nitro groups which are similar to that in TNT and the nitroglycerin in dynamite. But the presence of more of these nitro groups means it explodes with more power.
What makes a substance explosive?
1. An explosive substance is a solid or liquid substance (or mixture of substances) which is in itself capable by chemical reaction of producing gas at such a temperature and pressure and at such a speed as to cause damage to the surroundings.
What are explosive elements?
All explosives must contain both oxidizing and reducing agents. Strong oxidizing agents require the use of the most electronegative elements nitrogen, oxygen, fluorine, and chlorine. Therefore, one common aspect of HE compositions is a large percentage of the more electronegative elements nitrogen and oxygen.
How does an explosive work?
A general theory of explosives is that the detonation of the explosives charge causes a high-velocity shock wave and a tremendous release of gas. The shock wave cracks and crushes the rock near the explosives and creates thousands of cracks in the rock. These cracks are then filled with the expanding gases.
Can nitroglycerin kill you?
In addition, prolonged exposure to nitroglycerin may inhibit aldehyde dehydrogenase (ALDH2), an enzyme that may have a significant cardioprotective role during cardiac events. Administration of nitroglycerin to a patient with right sided heart failure will kill the patient.
What is monday disease?
Monday syndrome refers to fatigue, dizziness, chest tightness, abdominal distension, loss of appetite, body ache, inattention and other symptoms when working on Monday. People focus on work and study from Monday to Friday that forms a “dynamic stereotype”.
Is it dangerous to take nitroglycerin?
As with any medicine, nitroglycerin might be harmful if you don’t take it correctly. You should not take nitroglycerin if: You have taken the maximum amount of short-acting nitroglycerin prescribed by your doctor. You know your blood pressure is very low.