Why did Archimedes shout 'eureka'?
According to legend, Archimedes shouted "Eureka!" (which means "I
have found it!") while running down the streets naked. The reason
he did this is because he found out that, a body immersed in water
has a buoyant force equal to the weight of the water that it
displaces. He was able to find out if the kings crown was really
made of pure gold this way (and it wasn't).
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In Education
Why did Archimedes shout out ereka?
Archimedes, according to legend, shouted "Eureka!" after leaping out of his bathtub and running naked down the streets of Syracuse (a Greek colony in ancient Sicily). Eureka m…eans "I found it!" in Greek, and he was yelling it because he was ecstatic at finding the solution to a problem that had been put to him by the king of Syracuse. It seems the king was suspicious that a jeweler was cheating him about the true amount of gold he had used to make the royal crown. It was known how much a given amount of gold should weigh, but the problem was that the crown was already finished and shaped into an intricate design, and there was no good way to measure the volume of the crown without destroying it. When Archimedes lowered himself into his full bathtub, he noticed that his body displaced an amount of water, spilling over the edge. He reasoned that an object lowered in water would displace a volume of water equal to its own, so he now had a way to accurately measure the volume of the crown. The crown was tested, and it measured out at less that the amount of gold the jeweler had charged the king for, and he was punished severely. Archimedes was considered a scientific genius of his time, and was also credited for defending his city of Syracuse against the Romans by using cranes that overturned ships, and mirrors that concentrated sunlight on them and caused them to burn. (MORE)
Answered
In Education
What struck Archimedes mind when he shouted 'Eureka'?
Eureka!According to legend, Greek mathematician and engineer Archimedes shouted "Eureka" (Greek: "I have found it") when he discovered a way to calculate the volume of an irre…gular solid by submerging it in water and measuring the volume of water it displaced. This led to further discoveries involving density and buoyancy. In physics, buoyancy is the upward force on an object produced by the surrounding fluid (i.e., a liquid or a gas) in which the object is fully or partially immersed, due to the pressure difference of the fluid between the top and bottom of the object. The net upward buoyancy force is equal to the magnitude of the weight of fluid displaced by the body. This force enables the object to float or at least to seem lighter. Buoyancy is important for many vehicles such as boats, ships, balloons, and airships. Archimedes was given the task by the king to find out if his gold crown was made of only gold or some other cheap metals were mixed to it. Archimedes was continuosly thinking of the way to find it and while he was taking bath in a bath tub, he found that some water was spilled when he entered it.(he could then give the Archimedes principle after cetain experiments on buoancy). well he cried out eureka at that particular moment which in greek means "i have found it". (MORE)
Answered
In Physics
Who ran down the street shouting eureka and why?
Archimedes - he was a Greek mathematician and inventor from Syracuse in the third century BCE. Legend says that he was asked by a king to figure out a way to ensure that his …crown was all real gold. As he was in his bath he realised that when something is floating in water it displaces water equal to the weight of the object, ad when something sinks in water it displaces water equal to its volume. He was so excited, the legend says, that he jumped out of the bath and ran to tell the king, shouting "Eureka" - which is Greek for "I've found it" (meaning "I had found the answer to the king's question"). no this isn't true ran did. ran ran down the street (MORE)
In Laundry
Tips for Using Shout Detergent
When it comes to doing laundry, some people dread it, while others find it relaxing. Doing laundry is part of regular housekeeping maintenance; however, some tips and tricks c…an be used to improve how one handles this type of maintenance in the home. Shout detergent is one of the products that some people use to remove the stains from their clothes, even though others have never heard of this handy product. Thus, read on to learn the basic tips on using Shout detergent in order to make your life a little easier.Washing your clothes often can help you ensure that your clothes stay clean, fresh, and looking brand new. Removing stains as quickly as possible can also help to keep clothes looking new and clean. When you need to wash laundry, especially when you are using Shout products, you need to ensure that you do not overuse it by using large amounts. Too much of this product can cause skin irritation when the clothes are worn.You should use hard water when you are using the powder form of Shout detergents. If you do not have hard water, you can use liquid or powder detergent as well. However, this is all up to personal preference. Powder detergent is believed to be more abrasive, which can help with more harsh stains or color problems in your clothing.Using hot water can really help to get stains out of clothing, especially when coupled with a good stain remover or laundry detergent. You can think of the similarity between using hot water in your clothes and using hot water for washing dirty dishes. The heat really helps to pull the food off the dishes. It is the same thing when washing clothes; the hot water helps to pull the stains right out. Coupled with the stain fighting detergent, you will be set up for success. However, it is important to be careful when using hot water because it can make colors bleed out from your clothing into the water and onto other materials.When using Shout detergent, you will want to avoid direct sunlight on the clothes for long periods. This is because of the materials that white clothing is made out; typically, the detergent and sunlight combined can make clothes change colors. The color that you will typically see is yellow. On dark-colored clothing items, the sun can cause the color to fade and look washed out.Shout detergent cannot be used on every type of material. It is recommended that it not be used to fight stains on comforters or bedding. The reason for this is because the comforter or blanket can be too thick, and it can cause residue to build up inside of the blanket. This residue will ruin the material of the bedding. You should make sure that you look at the tags on your clothing in order to ensure that you are not using Shout detergent when it could potentially damage the material being washed.How people choose to wash their laundry can be about personal preference. Housekeeping is structured based on personal preference, depending on what kind of routine the person has and what cleaning methods are that they prefer. When using Shout detergent as part of your laundry routine, it is important to be familiar with how this product should be used with certain types of clothing. Just like any other chemicals, if used incorrectly, there are problems that can arise, such as colors fading and colors bleeding. Taking care of clothes starts with the type of detergent that you use. Thus, you need to read the labels on the detergent bottle as well as on the clothing that you wish to wash before using Shout detergent.Baking soda and vinegar can remove stains effectively. Using lemon juice on stains, following by putting the clothing in the sun, can also help to remove stains from your clothing items. These are methods for people that prefer to live a more "green" lifestyle, while ensuring that their clothes retain their color and stay looking brand new. (MORE)
In Gear
Gear Review: Eureka Midori Solo Tent
The Midori Solo tent from Eureka is designed for hikers and backpackers who like to go it alone. But single-person tents sometimes lack in amenities and features. How does the… Midori Solo stack-up? Read on to find out. (MORE)
In Vacuums
The Most Popular Lightweight Vacuum Cleaners
There are so many vacuums on the market that it is an overwhelming process to decide on one. Gone are the days of bulky vacuum cleaners. Improved technology allows you to choo…se effective lightweight vacuum cleaners. Lightweight vacuums are just as powerful as their bulky counterparts.The Hoover Platinum Upright Vacuum with Canister is one of the most popular lightweight vacuum cleaners available. It has a powerful 2-amp motor, a self-sealing HEPA bag and a five-year warranty. The upright delivers powerful suction to thoroughly clean your carpet. The canister assists in above-floor cleaning needs. For more cleaning convenience, the upright comes with a 35-foot cord. In addition, this vacuum includes several accessories with your purchase. Some of the accessories are a telescopic extension wand, a crevice tool and a carrying strap for the canister. The Eureka Superlite Lightweight Vacuum is a budget-friendly vacuum. This vacuum is bagless, has a telescopic handle and includes a two-motor system The vacuum is equipped with a button to control the brushroll; turn the brushroll on for carpet cleaning and turn it off for floor cleaning. The Eureka Superlite offers 3.5 amps of power.The Eureka Optima Lightweight Vacuum is powerful and light. The vacuum offers a comfort-grip handle, a two-motor system and on-board tools. This bagless vacuum is equipped with a 12-amp motor and an 11-inch cleaning path. A 20-inch power cord adds convenience to your cleaning duties.The Dirt Devil Quick Lite Plus Vacuum offers cyclonic technology and HEPA filtration. The vacuum is easy to assemble and includes a long flexible hose. The slim design of the Dirt Devil Quick Lite Plus makes it perfect for small spaces.A vacuum cleaner that is lightweight cuts down on the time and labor it takes to keep your home clean. There are ample resources for you to research your potential vacuum. Browse online retailers for real consumer reviews before you make your purchase. Although bagless vacuums are convenient, they nevertheless can wreak havoc on your allergies. If you suffer from dust or other allergies, consider the canister carefully. Vacuums with button-release doors on the bottom are best for allergy sufferers; the contained dirt simply drops into the trash can and your contact with the dust and other allergens is kept to a minimum. (MORE)
In Equipment
Hydrostatic Weighing
Hydrostatic weighing is one of the more accurate means of determining a person's body fat percentage. Whether you want to resort to this method would be based somewhat on how …much accuracy you are looking for in the measurement. There are other methods available in the world of sports medicine that, while less accurate, are more convenient, and you do not have to hold what little breath you are allowed to store, while you are underwater. The whole concept of hydrostatic weighing goes back to a discovery by Archimedes.The basic principle is Archimedes' Principle. It is the one that he supposedly discovered while taking a bath. Archimedes' Principle states that the buoyancy force is equal to the body of water displaced. If you are completely submerged, then the amount of water that you displace will be equal to the volume of your body, no matter what your weight is. Fat people will displace more water than thin people will. If you know the weight of a person, then the so-called "dry weight," dividing that weight by the person's volume, which is the same as the volume of water that has been displaced, gives you the density of that person's body. Knowing the density of a person's body allows the percentage of body fat to be calculated.It would be nice if it was that easy, but it is not. For one thing, there is air in the lungs of the person being measured. There may also be a small amount of air trapped in various body cavities. There will also likely be some gas in the person's digestive tract. This complicates the calculation. In addition, because not all people have the same build, the calculation of body fat percentage has to be done in comparison with calculations that have been performed over a large population. To put it simply, the calculations that are done using the hydrostatic approach will at best provide you with an estimate of your body fat percentage. It can be a close estimate, however, often within one to three percent. This method of measuring a person's body fat percentage is the second most accurate of the various techniques that are employed.The bathroom scales will only give you your weight. The scales have no way of knowing your volume. The scales therefore are unable to calculate body density. If you know how much you should weigh if you were in excellent physical condition, or in training, then you could use that as a baseline. Still, you would need to know what the percentage of your body fat should be. An example might be 10 percent, if you weighed 130 pounds. If you are into bodybuilding, then that extra weight that you have put on could be muscle, and not fat. When that extra weight is muscle, you would be leaner and take up less volume than if that extra weight was fat.One of the simplest is the use of a tape measure around the waist together with a formula that takes into account the person's height. This is not a terribly accurate method. The use of body fat calipers is common and reasonably accurate, although this method tends to estimate body fat on the low side. Bioelectrical impedance measurements are yet another approach. Here, a small electric current is passed through a person's body. Fat conducts electricity less than does muscle or water, and calculations are made on that basis. The most accurate method of all, and likely the most expensive, is to have a full body x-ray scan taken. The basic piece of equipment is a large tank. There are portable tanks available, and there are companies that conduct these tests while moving from location to location. Besides the tanks, which are usually made of stainless steel, there is a weighted chair for the person being measured to sit in while submerged. To obtain the greatest accuracy, a person needs to expel air from his or her lungs just before being submerged. This usually requires one additional piece of equipment, a nose clip.If you have been considering submitting to a hydrostatic test in order to have your body fat percentage estimated, then there are a couple of things worth keeping in mind. First, you need to be completely submerged. In addition, you have to expel the air from your lungs first. Most people, when under water, like to have some air in their lungs. Finally, you should ask those who are conducting the measurements to do so in haste.Archimedes' Principle states that the buoyancy force is equal to the body of water displaced. If you are completely submerged, then the amount of water that you displace will be equal to the volume of your body, no matter what your weight is. (MORE)
In Ancient
Famous Ancient Greek Mathematicians
The era of ancient Greek mathematics constitutes a major period in history for mathematics, especially in regards to geometry and theoretical concepts. Many breakthroughs in m…athematical concepts were made as well as the proving and expansion of previous theories. The ancient Greek mathematicians were very focused on rationality. The work of Greek mathematicians laid down the foundations for geometry, calculus, geography, natural science, and more. Here is a list of some of the more famous ancient Greek mathematicians.Thales of Miletus lived from about 620 BC to about 546 BC. He was born in Miletus, which was in Greek Ionia. He is considered to be the founder of the school of natural philosophy. He was the first known Greek mathematician, philosopher, and scientist. Thales had an interest in everything, and proposed theories related to nature, astronomy, engineering, and other scientific areas. His questioning approach to heavenly phenomena is considered the start of Greek astronomy. He is also credited with five theorems of elementary geometry. He is well known for figuring out how to measure Egyptian pyramids by using their shadows.Pythagoras of Samos was born around 569 BC and died around 475 BC. He was from Samos in Greek Ionia. Pythagoras is often described as the first pure mathematician. This Greek mathematician started his own mystic cult that studied numbers. His disciples followed him around and taught others what he taught them. Pythagoras and his followers were interested in philosophy, mathematics, and music. He is best known for the Pythagorean Theorem, which was not his original idea, but he is known for being the one that may have proved it. He is also well known for applying numerical concepts to music, such as harmonies.Euclid was a Greek mathematician that lived from about 325 BC to 265 BC. He studied and worked out of Alexandria in Egypt. He is called the Father of Geometry and is most famous for his treatise on geometry, called The Elements. The Elements contains 13 volumes that discuss the rules of geometry that we use today, such as plane geometry and numbers theory. His math books were used to teach mathematics for over 2000 years.Aristarchus lived from about 310 BC to 230 BC. Although he was from the Greek island of Samos, he worked in Alexandria in Egypt. He is famous for being the first person to propose that the sun was the center of the universe and the earth revolved around it, although the idea was not accepted at the time. He attempted to determine the sizes and distances of the sun and moon by using geometric theories applied to shadows during eclipses.Archimedes is one of the most renowned of the ancient Greek mathematicians. He was born in Syracuse in 287 BC and was assassinated in 212 BC. He is arguably the greatest mathematician of his age and one of the greatest scientists of all time. His best known achievements are the establishment of the value of pi and his system of calculation that was the forerunner of integral calculus. He is considered the father of experimental science. Archimedes' Principle, the principle of floating bodies, is one of the basic laws of physics. He invented a wide variety of machines, including pulleys and the Archimedean screw pumping device.Eratosthenes of Cyrene was born 276 BC in Cyrene and died 194 BC in Alexandria. He was a Greek mathematician, geographer, historian, and astronomer. He is best known for his work as a geographer, especially for being the first to determine the circumference of the earth. His method involved measuring shadows at two points a known distance apart, and it produced fairly accurate results. He is also famous for his work on prime numbers.The ancient Greek mathematicians are known for making leaps and bounds in regards to geometric concepts and theories. They also founded or proved many concepts relating to geography, astronomy, physics, natural science, and more. Each ancient Greek mathematician made their own special contribution to the world of science, but many of them focused on a variety of interests. This list of famous ancient Greek mathematicians outlines the men that were responsible for leading the way to later scientific thought.The primary eras for ancient Greek mathematics are during the Classical period and the Hellenistic period. The Classical period was from about 600 to 300 BC and the Hellenistic period was from about 300 BC to 300 AD. The center of ancient Greek mathematics moved from Athens in the Classical period to Alexandria in the Hellenistic period. (MORE)
In Aquarius
Symbols of Aquarius
It's believed that inside every Aquarian is a hippie waiting to break free. This isn't necessarily so, but it should give you a good idea about how strong some symbols can be.… It's true that tie-dye and peace symbols shout, "Age of Aquarius" that many Aquarians still embrace. In this slideshow, however, you'll find some of Aquarius' more conservative symbols that everyone can enjoy.The royal purple stone of Bacchus, god of wine, is believed to bring sobriety to the wearer. The stone brings clarity while increasing Aquarius' keen intuition. It also places an emphasis on practical and logical behavior, two more Aquarian traits. Place an amethyst in a prominent spot as an aid to meditation or as a reminder to remain calm and to take a moment before acting in a rash or shocking manner.The once rare and still beautiful orchid is one flower associated with Aquarius. They symbolize beauty, as well as luxury. In the Victorian Language of Flowers, the orchid sent the message, "a belle," or "beautiful." In keeping with one of Aquarius' totem animals, the goose, orchids are sometimes referred to as Giddy-Ganders or Goosie-Ganders after Mother Goose and her babies.In your natal chart, Uranus (Aquarius' ruling planet) can act as a sudden flash of insight or genius. If you suddenly understand something you have never understood before - a Eureka moment - you are having a breakthrough Uranian moment. If you experience an abrupt disruption, you are also having a Uranian moment. A true weirdo of the universe, Uranus rotates on its side, marching to the beat of a different drummer.Aquarius rules all large birds, including large birds of prey. Geese were sacred to Juno and Aphrodite. Having the Sun or either of these asteroids in Aquarius in your natal chart makes the goose an excellent totem animal for you. Geese are ferocious protectors and excellent watchdogs. Their loud, odd honking alerts their owners to trespassers and other animal invaders.Like Aquarius' totem goose, eucalyptus is a symbol of protection. The essential oil of eucalyptus is stimulating, refreshing, and conducive to meditation. It has the ability to release negative psychic energy and is good for opening you up to understanding someone else's point of view. Highly antiseptic, it can be used in household cleaning formulas. (Always follow label precautions when using essential oils.)The number 7 is associated with research, withdrawal, and meditation. Even though Aquarius is a very social sign, it needs time to regroup and re-energize. The number 7 gives Aquarius the renewal time it needs to have moments of inspiration and revelation. This is the number of the scientist who devotes his life to solving a problem in order to make the world a better place for humanity.Electric blue is stimulating and calming at the same time. Blue is one of the most calming of all colors, yet the electric neon brightness is stimulating. It gets its name from the spark we see in lightning. It ranges from almost white to a deep blue, but is most often associated with a mid-range blue tinged with teal. When worn or used in decorating, electric blue can come across as somewhat cold or untouchable. All neon colors are shocking, with electric blue crossing the boundary between overly calm and over stimulated.Aquarius is the most freedom loving sign of the zodiac, and the one most likely to be associated with astronomers, lovers of sci-fi, and techies. Its cutting edge mindset and love of all things new is the substance that pushes humanity beyond their boundaries. As astronaut Buzz Aldrin said, "Mars is there, waiting to be reached." (MORE)
Answered
In Education
Who was Archimedes?
Archimedes (287-212 BC) was supreme and greatest Greek mathematician. He solved the problem of buoyancy. He established the laws of the lever. He Devised a method of displacem…ent volumes (the Eureka formula).he Made creative war machines to fight off the Romans. He Invented calculus (although this was forgotten) Archimedes of Syracuse (Greek: Ἀρχιμήδης) (c. 287 BC - c. 212 BC) was a Greek mathematician, physicist, engineer, inventor, and astronomer. He is a famous person (MORE)
Answered
What was the name of the Greek philosopher who shouted out Eureka?
it was Archimedes he shouted it after he discovered that thing about the bath. He filled it up and steeped init and realized it over flowed, so without bothering to get dresse…d he ran down the street screaming Eureka!(I have found it). (MORE)
Answered
In Technology
What is the Archimedes can?
The Archimedes can is a tool used for measuring the density of an object. Density = Mass/weight over volume g.cm-3 or something along those lines :) so you would weigh the obj…ect and then plop it into your Archimedes can and then measure how much water came out of the little tube thingamagig and divide the weight by the volume of water displaced and the answer with g.cm-3 beside it is how dense it is. I think. (MORE)
