Even though you cannot see them yet, the fireworks will begin tonight. In bright stunning colors, they will paint over the black world around them and they will glow. In all shapes and sizes they will scatter over the stars and the moon. They will erupt in loud, almost deafening blasts to hushed crackles of soundless glory. Each diploma received is a lighted match of fire. Each graduate is a fuse. If you put a lighted match and a fuse together, you make sparks to create light. If you put a diploma
Setting off fireworks to celebrate festivals and happy occasions has been a tradition for Chinese people. The loud booms as well as the striking spectacles displayed by the fireworks add to the jubilance of the day. However, the most beautiful aspects of fireworks cannot compensate for the problems they generate. Whether to ban the fireworks has always been a controversial topic among people. As the Air Pollution Index in Beijing becomes incredibly high this winter, a new discussion on the necessity
How to Make Black Powder (and other explosives) Introduction Black Powder, also known as Gunpowder, is an explosive that has been around, literally, for centuries. The exact origins of the formula are lost in time, but it is known that the Chinese used Black Powder in weaponry at least 1,000 years ago. Technically, Black Powder burns by a process known as deflagration. This differs from detonation in that Black Powder produces subsonic shock waves, as opposed to the supersonic shock waves produced
upon hour teaching me the so called "tricks of the trade". However, I have broken more than one bone learning what proves to be a very intense and serious sport and you should not take the excitment for granted. I got started when my dad entered a powder eight contest, that's when you and a partner go down the hill and make the number eight in the snow with your skies, the team with the best looking eight's win. As usually my father won, and that day was when he first taught me how to ski. He showed
I never quite had the perfect childhood. My friends have memories of playing, laughing, riding bikes, and family road trips. I don't have any of those memories. My most vivid memories from childhood are of red and blue police lights flashing in my eyes. I also recall memories of smoke and liquor. When I was age seven, my father disappeared. I hardly knew him before he was gone. He was like a stranger in my life. Later I learned that he was dead. My mother was always involved with the wrong
them. Gunpowder and a ball of lead were put into the gun’s muzzle and packed with paper wadding. A spark made when the gun’s hammer struck some flint at the back end of the barrel ignited the powder. When the constable examined Culshaw’s wound, he found a piece of newspaper used as wadding to pack the powder in the killer’s gun. The prime suspect in the killing was a man named John Toms. When a piece of newspaper found in Toms’ pocket was compared with the piece found in the wound, the pieces fit
The Effect of Temperature on the Reaction Between Chalk Powder and Hydrochloric Acid In this experiment, I am going to see if temperature affects the reaction rate between chalk powder and hydrochloric acid by timing how long it takes for the chalk powder to dissolve in the acid! There are many variables that could be used in this experiment! They are: - · Concentration of acid · [IMAGE]Surface area of chalk Powder · [IMAGE]Amount of chalk 0.1g · [IMAGE]Volume of hydrochloric
Rain on Statues Introduction ------------ During this investigation, I will use dilute hydrochloric acid as the acid rain and crushed calcium carbonate as the chemical of the statues. Then I will time how long it takes for the limestone powder to react until there is no more left when the acid is added to it. Rain contains acid naturally as it collects carbon dioxide from the air and makes carbonic acid. Rain normally has a pH of about 5.5 – it is slightly acidic due to the carbon
work in the Pixie Stick Powder mines on the moons of Gluteus. "You see," he told his sycophantic servants and lackeys, "I have solved two problems with one simple executive order. I have rid the planet of those annoying, nerdy, know-it-all, engineers." (King Syphilis was actually quite envious of them, because he went to a Junior University in Palo Alto, and didn't know very much at all.) "And secondly," he explained, "I have provided cheap slave labor for the Pixie Stick Powder mines, thus ensuring
society? Perhaps they would visit a type of "health food store" for a type of common natural remedy. Often, the mangers at such stores recommend that comphrey tea be taken to relieve the problem. However, after taking just such a concoction of the tea powder and water, one man became light-headed, agitated, confused and had problems urinating. His pupils became dilated, he had a rapid heartbeat and warm dry skin. After admitting himself to the hospital, the doctors concluded that his comphrey tea was
an alkaline earth metal which belongs to group II of the periodic table, was first discovered in 1798 by L.M. Vauquelin. Vauquelin,a French chemist, was doing work with aluminum and noticed a white powder that was nothing like that of aluminum or any of its derivatives. Vauquelin named this mystery powder, gluinium because of its sweet taste was like that of glucose. In 1828, Wohler, a German metallurgist reduced it to its metallic form and renamed it beryllium.(figure 2) There was no commercial
'mix', Aryan root ghu, to pour, whence the word 'gush'. Mr. A. Wallis Budge in his "Egyptian Magic", however, states that it is possible that it may be derived from the Egyptian word khemeia, that is to say 'the preparation of the black ore', or 'powder', which was regarded as the active principle in the transmutation of metals. To this name the Arabs affixed the article 'al', thus giving al-khemeia, or alchemy. HISTORY OF ALCHEMY: From an early period the Egyptians possessed the reputation of
unfair and used to profile African Americans and inner-city minorities, primarily due to the sentencing difference in rock and powder cocaine. There is a difference in the two forms and how they are sold. Cocaine can be bought and sold as powder or rocks, also known as crack or crack cocaine. The effects of each are essentially the same. People will get the same effects with powder as with crack. The sentencing disparity between the two forms of cocaine is unjust and has a disproportionate impact on African
measured and put the powder down the barrel of the gun. Next some shotgun pellets were put in the same way. This was then all compacted and the gun was ready to fire. This reloading took over a minute before each shot could be fired and the guns weren't very accurate by today's standards. If too much powder was used then the gun could explode or if the powder were wet then the gun wouldn't fire. One of inventions during the Revolutionary War was a way to reload faster. The powder was already pre-measured
such a rabble-rousing rogue to be the champion of freedom for His chosen people? Because Samson was a catalyst meant to disrupt the complacency of the Israelites with regards to their subjugation to the Philistines—the proverbial lit match to the powder keg. He was also created to serve as an archetypical folk hero for his generation and those to follow, a larger-than-life symbol to remember and take heart from when things got tough. “Created” is the operative word for Samson—he is created for
sucking could get unwanted and potentially dangerous substances into the mouth. 0.500g of sodium carbonate (a white powder) was added to the water, having been carefully weighed on an electronic balance - this was very exact and had a cover to maximise accuracy (it protected the balance from being affected by wind or other particles). The balance measured the mass of the powder to the nearest thousandth of a gram (i.e. 0.001g). Then a burette on a stand was obtained, a considerable amount of
carbonate is released as carbon dioxide. Metal Carbonate = Metal Oxide + Carbon Dioxide Malachite is an ore of copper. It is made mostly of copper carbonate. It can be crushed into a green powder. If this powder is heated it changes colour. A new substance has been made. The new substance is a black powder. This is called copper oxide. The copper carbonate has been decomposed. Copper oxide is made by thermal decomposition of copper carbonate. Carbon dioxide is also made. The formula for this
Hydrochloric Acid on the Amount of Hydrogen AIM === I want to find out how the concentration of Hydrochloric acid affects the amount of hydrogen or the time it takes to produce 30cm3 of gas, when the Hydrochloric acid reacts with the magnesium powder. Prediction ========== I predict that the amount of hydrogen in the measuring cylinder will increase as the concentration increases; this is because if there is more concentration there shall be more particles for the magnesium to collide
exactly, but had never asked…was it a sauce, a powder, or just spices mixed togeth= er? Where did it originate from? I wanted to find this out for myself. Don’t get me wrong, I love my culture’s food, but I want= ed to do something different, learn about another culture other than my own. The word cu= rry, comes from the English word “kari”, which means sauce. Even so, being that it is an ingre= dient mainly used in India, it does not come as a powder (which is provided to us= in American supermarkets
clandestine raiders to a sophisticated weapon of war. The original bomb, an ancestor of the hand-thrown GRENADE, was a simple container filled with black powder (see GUNPOWDER), which was set off by a fuse lit by the thrower. In the 16th century, the Dutch invented a more sophisticated version, the MORTAR bomb, a round iron container filled with black powder that was set off when a fuse was ignited by the detonation of a propelling charge in the base of the mortar tube. By varying the length of the fuse