why do stars appear to move in the night sky

why do stars appear to move in the night sky

Objects such as stars appear to move across the sky at night because Earth spins on its axis. This is the same reason that the sun rises in the east and sets in the west. Stars that are low in the east when the night begins are high in the sky halfway through the night and low in the west by daybreak the next day. During the day, the stars continue to move across the sky, but the sun is so bright that they canвt be seen. Of course, the stars arenвt moving relative to the Earth's position in space. They just appear to move to human stargazers. The stars move across the sky a little faster than the sun. This difference arises because the stars appear to move only because of Earthвs rotation, while the sun also appears to move because the Earth goes around the sun once a year. This

 why do we need to study microbiology

why do we need to study microbiology

Why Study Microbiology? By The question of why to study microbiology is a good one the impacts of microorganisms on your life may not be immediately obvious. But the truth is, microorganisms not only have a huge impact but are literally everywhere, covering all the surfaces of your body and in every natural and urban habitat. In nature, microorganisms contribute to biogeochemical cycling, as well as turnover of material in soil and aquatic habitats. Some are important plant symbionts (organisms that live in intimate contact with their host, with mutual benefit for both organisms) whereas others are important pathogens (organisms that cause disease) of both plants and animals. Although not all microorganisms are bad, the treatment and prevention of the diseases caused by bacteria,

 why is saturn called the jewel of the solar system

why is saturn called the jewel of the solar system

A huge storm churning through the atmosphere via is the sixth planet from the sun, but in many ways it is a planet of seconds: But Saturn still is, and probably always will be, number one. For obvious reasons, Saturn is frequently referred to as БThe Jewel of the Solar System. Б Although all of the gas giants in our solar system have ring systems, SaturnБs ornaments are, by far, the most awe-inspiring. There are billions of particles that comprise SaturnБs rings; these particles range from dust-sized grains to minor giants (some of which have a diameter of some 1. 8 kilometers/1. 1 miles). And with a thickness of about 1 km (3,200 feet), the rings span roughly 282,000 km (175,000 miles), which is about three fourths the distance between the Earth and Moon. Moreover, these rings are the

 why do my toenails curl up on the sides

why do my toenails curl up on the sides

Curling finger nails can mean a number of things, including; fungal nail infections, deficiency in certain vitamins, weak nails, nails that are too long. Fungal nail infections Although these occur more frequently in toe nails, they can also affect the finger nails too. Most commonly this may be passed from toe fungal nail infections although this is not always the case. People who have low immunity or those who wash their hands a lot are also more susceptible to such infections. In addition to fingernails curling other symptoms are likely to be present such as discoloration, peeling, flaking or itching around the nail. Vitamin deficiency Although this is more common than fungal nail infections; usually nails that curl due to deficiency would be more likely to curl downwards. This can't

 why the affordable care act is good

why the affordable care act is good

10. Creates new protections to ensure your insurance plan covers you when you need it. Massachusetts already has strong insurance protections. The Affordable Care Act (ACA) enhances these protections by eliminating limits on the amount of benefits you can receive. 9. Expands coverage for young adults. Under the ACA, young adults are able to stay on their parents coverage until age 26. 8. Strengthens the primary care system and supports community health centers. The ACA has already provided more than $130 million to community health centers in Massachusetts to strengthen their programs while expanding access to primary care for community members. 7. Reduces childhood obesity and tobacco use. The Department of Public Health is using ACA grants to improve emergency medical services for

 why do they shave your head in the army

why do they shave your head in the army

There is no such thing as a Stupid Question! Don t be embarrassed of your curiosity, everyone has questions that they may feel uncomfortable asking certain people, so this place gives you a nice area not to be judged about asking it. Everyone here is willing to help. All questions are welcome such as to how to change oil, to how to tie shoes. All questions are welcome - except clear trolls, please don t be that guy. Thanks for reading all of this, even if you didn t read all of this, and your eye started somewhere else have a cookie. Related subreddits: (Why do people. ) This subreddit was inspired by thread and more specifically, comment. All direct answers to a post must make a genuine attempt to answer the question. Joke responses at the parent-level will be removed. Follow-up

 why do we need to protect world heritage sites

why do we need to protect world heritage sites

ISIS has taken full control of SyriaБs ancient city of. б There hasnБt been any reported destruction of the ruins yet, but the world is waiting anxiously to see what ISIS does next. б For those of you who donБt know, ISIS is an Islamic Militant group that has wreaked havoc around the world. The group has beheaded journalists, committed war crimes, abused human rights, and destroyed priceless archaeological artefacts, like in the ancient Iraqi cities of Hatra and Nimrud. б UNESCO Director-General Irina Bokova and the international community are extremely worried that the ancient city of Palmyra will be destroyed at the hands of ISIS. You may be asking yourself what exactly UNESCO cultural heritage sites even are and why any of this is important. Great questions. A UNESCO World Heritage

 why does my nose bleed when i wake up

why does my nose bleed when i wake up

Nosebleeds are common in kids 3 to 10 years old, and most are caused by nose-picking or dry air. They can be scary, but are rarely cause for alarm. Most will stop on their own and can be easily managed at home. What to Do: Stay calm and reassure your child. Have your child sit upright in a chair or on your lap, then tilt his or her head slightly forward. Do not have your child lean back. This may cause blood to flow down the back of the throat, which tastes bad and may cause gagging, coughing, or vomiting. Gently pinch the soft part of the nose (just below the bony ridge) with a tissue or clean washcloth. Keep pressure on the nose for about 10 minutes; if you stop too soon, bleeding may start again. Have your child relax a while after a nosebleed. Discourage nose-blowing, picking, or

 why do ph meters need to be calibrated

why do ph meters need to be calibrated

Calibration is done with pH buffer solutions to optimizePyour reading accuracy. PWhen you calibrate your pH meter, you calibrate it to work with the particular pH electrode attached, using buffers with pH values that have been confirmed and certified. Calibration is necessary because it mitigates degradation due to normal use and accounts for thePdifferences between one pH electrode and the next - degradation include the state of the junction and reference cell, while variations include any minute difference in the thickness of the glass in the electrode, the precise porosity of the junction, and so on. Most instrumental methods of analysis are relative. Instruments register a signal due to some physical or chemical property of the solution. For example, pH meters measure the electrode

 why does my dog keep chewing her paws

why does my dog keep chewing her paws

Is your dog licking at his paws constantly? Notice a, inflamed appearance to the area between the paws? If this is happening, read on! Not only does excessive licking cause discomfort for your dog, but it is often due to an underlying medical problem. Often times, excessive licking of the paws is due to one of three underlying causes: Underlying itchiness is what results in that constant foot licking; the moisture caused by excessive foot licking between the paws can cause a secondary or yeast infection. This can actually worsen the itchiness and clinical signs. Excessive licking of the paws warrants a trip to your veterinarian, as certain tests need to be performed to rule out. ...

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