Gunpowder‚ or black powder‚ is a flammable powder and considered a “low explosive”. It consists of a mixture of Sulfur‚ Charcoal powder‚ and Potassium Nitrate (saltpeter). When put under pressure and lit‚ it will deflagrate and explode. Gunpowder was widely used in China in hand cannons (early firearms) and firecrackers (early missiles). The earliest recorded usage of gunpowder in a weapon were Chinese land mines developed in the 9th century. Gunpowder is not widely used as an explosive today‚ however
Premium World War II Nuclear weapon China
potential banana skins. The author decided to process using pyrolysis i.e. objects in dry until moisture content less than 12% in continue with temperature pyrolysis unit at 550 C‚ of this process generated two basic products namely‚ liquid smoke and charcoal as a residue. Both products have been mentioned can be processed into other products. Processed products which will be used by authors as a preservative fuel is safe and can be consumed in the community. Chapter I PRELIMINARY A Background Yogyakarta
Premium Banana
the iron powder and activated charcoal‚ and oxygen in the atmosphere‚ react with each other chemically to create warmth. Inside the pouch‚ there is iron powder. When it comes in contact with oxygen‚ the iron rusts and releases heat. The outside bag is a microporous pouch‚ which has tiny holes that are big enough to allow air inside‚ providing the oxygen for the reaction between iron and oxygen. Inside the hand warmer‚ there is also activated charcoal‚ which is charcoal that has been heated in the presence
Premium Temperature Heat Heat transfer
100 mL graduated cylinder‚ Beral pipet or disposable pipet‚ 5 mL of distilled water‚ 100 mL of foul water‚ straightened paper clip‚ disposable cup‚ gravel‚ sand‚ 150 mL beaker‚ filter paper‚ funnel‚ clay triangle‚ iron ring‚ ring stand‚ 1 tsp of charcoal‚ 125 mL to a 250 mL Erlenmeyer flask‚ test tube brush‚ solid background‚ stirring rod‚ and a cleaning detergent.
Premium Water Water pollution Sewage treatment
clean water – don’t use river water‚ water from puddles‚ etc! It IS contaminated and may contain cholera-causing bacteria that will make you sick. Don’t use charcoal whenever you can‚ use LP gas if possible! Why? Remember this tree… with the swing… you could climb it‚ sit under it for shade‚ play on it‚ hide beneath it’s roots‚ etc. But charcoal is made from the destroying this trees… and all these trees. When too many trees are cut down‚ animals (which ones?) have no place to live‚ and water washes
Premium Soil Deforestation Real estate
1. Examining a work of art in its historical‚ social‚ and political __________ enables you to better understand it. A. design B. context C. element D. genre E. ideology 2. Mexican artist Frida Kahlo is best known for her extremely realistic and often anguished __________. A. genre scenes B. self-portraits C. landscapes D. still lifes E. assemblages 3. Until modern times‚ art works have been primarily devoted to __________ themes. A. war B. religious C. secular D. rural E. political 4. An anti-commercial
Premium Modern art Visual arts Sculpture
Banana (Musa Paradisiaca) Peel Shoe Polish | Abstract:Shoe polish is used to shine‚ to maintain the appearance and to sustain the quality of the shoes. Based on the information in the written articles‚ banana peels can be used to shine shoes so the researcher decided to come up with the study of making a shoe polish out of banana peelings. The study aimed to produce a cheaper but better alternative shoe polish.The researchers used banana peels‚ kerosene and candles in making the product. In making
Premium Fruit Water Carbon
the arm‚ I gave up. I was so frustrated and I just didn’t know how to make it look right. I looked over to my left to where another girl was working. I looked at her artwork and was amazed. Her picture of the glass bottle was phenomenal. The dark charcoal marks and highlights on the paper made it look so realistic. Her success encouraged me to keep on working. I wanted my artwork to be just as good as hers. After erasing‚ and redrawing the arm multiple times‚ it started to look decent. It was finally
Premium English-language films Sleep Debut albums
eco-friendly and cheap. METHODOLOGY Our homemade shoeshine is very easy to do and requires only a few ingredients. INGREDIENTS: * Charcoal * Coconut oil * Candle PROCEDURE * Pound the charcoal until it become refined using a mortar and pestle * Liquefy the candle * Put the coconut oil * Wait until it begin to boil then put the refined charcoal * Make it boil again then filtrate it using a cloth and put it in the container * Wait until it dry up NOTE: The amount
Premium Footwear
America. The evidence was charcoal taken from two fire pits‚ it was placed at around 13‚000 B.C. This at the time went against the work and other evidence that placed human beings in the area at a much later date. 3. There is a lot more evidence of the Clovis man found throughout America. The Clovis spear point was a man made tool and it was found with mammoth bones. That proves that it was most likely human beings and it also places a time frame. On the other hand the charcoal may prove an earlier
Premium Human evolution Prehistory Human