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Which instrument is often filled with mercury or colored water or alcohol?
Thermometers are the instrument that is often filled with mercury, colored water, or alcohol. Most early thermometers were made with mercury.
How do tools help us?
Tools help us so that we don't have to do things with only our bodies. For instance, a shovel would help a lot if you wanted to dig a hole. It is a lot harder with only your hands and fingernails. Eating food is often easier with a fork, or a bowl. Sewing is much easier with scissors and needles, and keeping in touch with people is often easier with paper and pen, or a phone, or a computer.
How is electricity generated in hydro electricity power plants?
Hydroelectricity is electricity generated by hydropower, i.e., the production of power through use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy. Once a hydroelectric complex is constructed, the project produces no direct waste, and has a considerably lower output level of the greenhouse gas carbon dioxide (CO2) than fossil fuel powered energy plants. Worldwide, hydroelectricity supplied an estimated 816 GWe in 2005. This was approximately 20% of the world's electricity, and accounted for about 88% of electricity from renewable sources.Industrial hydroelectric plantsWhile many hydroelectric projects supply public electricity networks, some are created to serve specific industrial enterprises. Dedicated hydroelectric projects are often built to provide the substantial amounts of electricity needed for aluminum electrolytic plants, for example. In the Scottish Highlands of United Kingdom, there are examples at Kinlochleven and Lochaber, constructed during the early years of the 20th century. The Grand Coulee Dam, long the world's largest, switched to support Alcoa aluminum in Bellingham, Washington, United States for American World War II airplanes before it was allowed to provide irrigation and power to citizens (in addition to aluminum power) after the war. In Suriname, the Brokopondo Reservoir was constructed to provide electricity for the Alcoa aluminum industry. New Zealand's Manapouri Power Station was constructed to supply electricity to the aluminum smelter at Tiwai Point. As of 2007 the Kárahnjúkar Hydropower Project in Iceland remains controversial.
Why do inexperienced biologists often have difficulties using a microscope to follow tiny organisms as they move about in a drop of pond water on a microscope slide?
In experienced Biologist often have difficulties using a microscope to follow ting oraganisms as they move about in a drop of pond of water on a microscope because the hardly have used mycroscopes in their early life or in schools and colledges and univercities .
First person to study determinants and discovered Bernoulli's numbers before Bernoulli?
Seki Takakazu is often recognized as the first person to discover Bernoulli's numbers and the determinant. These discoveries occurred in the late 1600s and early 1700s.
What is a instrument used to draw circles?
A drawing compass - often referred to as a pair of compasses.
What yarn would i need for 2.5 mm knitting needles?
The ball band on yarn often tells you what size needles it is suitable for.
What supplies were used on early explorations?
Early explorers used supplies such as navigational tools (compasses, astrolabes), maps, provisions (food, water), weapons for defense, clothing, and trade goods. They also often brought tools for building shelters, such as axes and saws, as well as items for communication (whistles, flags).
Are graphs often constructed from tables of information?
true
Where can one get an antique compass?
Antique compasses can be found most readily at antiques stores that specialize in nautical materials. Some antique timepiece stores will carry compasses as they were often manufactured by the same companies that created the timepieces.
Are needles in clusters?
Yes, needles on conifers like pines, spruces, and firs often grow in clusters or bundles. For example, pines typically have needles that grow in clusters of 2, 3, or 5, while spruces and firs tend to have single needles attached individually to the branch.
What kind of maps did the early explorers have?
Early explorers used various types of maps, including portolan charts, Ptolemaic maps, and mappa mundi. These maps were often hand-drawn, lacked accurate scales, and were based on limited geographical knowledge. Navigational tools like compasses and astrolabes were also crucial for navigation during this period.
Did explors use compasses to find their way or did they have other stragies?
Explorers used compasses as a primary tool for navigation, especially at sea where landmarks were not always visible. In addition to compasses, explorers also used celestial navigation, maps, and landmarks to find their way. Each method had its strengths and limitations, and explorers often combined multiple strategies to ensure accurate navigation.
Why are structures constructed symmetrically?
Structures are often constructed symmetrically for: 1. Aesthetic sense 2. Gravitational balance 3 our human structure
What does on piuns and needles mean?
If someone is on pins and needles, then they are agitated or in a state of suspense. Ex: She was on pins and needles as she waited to hear if she'd gotten the job.
Do skin doctors often use needles?
"Some skin doctors, dermatologists, use needles depending on what they are doing. If something needs to be numbed, botox is being administered, or any other type of injection, then yes needles will have to be used. Otherwise, no needle will be needed."
What is emery bag and what is the function?
It is a little stuffed thing often in the shape of a strawberry, used to sharpen and polish needles. It is not good to leave the needles in though, as they may rust. It is used in couture sewing.
