why do things float better in saltwater

why do things float better in saltwater

Many people donвt see floatation therapy as a health option because they fear drowning in the floatation capsule. Since floatation therapy can be conducted in salt water, candidates have less to fear than they think. Today, weвll examine the science of salt water and buoyancy in an attempt to allay candidatesв concerns. Density The main reason objects float more easily in salt than fresh water is their density. Density is the measurement of a materialвs mass per unit of volume. Freshwater has a normal density of about one gram per cubic centimeter. Low density makes it more difficult for objects and people to float. Salt increases waterвs density by changing its mass without significantly changing its volume. With enough salt in the water, a person will become buoyant and float. This is

 why was the great depression so severe

why was the great depression so severe

Great Depression, worldwide economic downturn that began in 1929 and lasted until about 1939. It was the longest and most severe ever experienced by the industrialized Western world, sparking fundamental changes in economic institutions, policy, and economic theory. Although it originated in the, the Great Depression caused drastic declines in output, severe, and deflation in almost every country of the world. Its social and cultural effects were no less staggering, especially in the United States, where the Great Depression represented the harshest adversity faced by Americans since the. The Dust Bowl in Oklahoma created storms so bad they buried cattle. Photo: Arthur Rothenstein/National Archives The Great Depression was a worldwide economic that lasted 10 years. Its kickoff was,

 why do we need to check blood pressure

why do we need to check blood pressure

B. Place the stethoscope in your ears. Tilt the earpiece slightly forward to get the best sound. 3. Inflate and deflate the cuff A. Hold the pressure gauge in your left hand and the bulb in your right. B. Close the airflow valve on the bulb by turning the screw clockwise. C. Inflate the cuff by squeezing the bulb with your right hand. You may hear your pulse in the stethoscope. D. Watch the gauge. Keep inflating the cuff until the gauge reads about 30 points (mm Hg) above your expected systolic pressure. At this point, you should not hear your pulse in the stethoscope. ...

 why do the farmers spray insecticides on their plants

why do the farmers spray insecticides on their plants

There is, it seems, no effective way for oilseed rape farmers to combat pests on their crops this autumn. Whether neonicotinoids should be banned is a separate issue. But the uncontrolled introduction of highly active agents at a vast scale into a chaotic system is a careless way to treat ourselves and nature. Some regulation, based on the precautionary principle, is just sensible. The effect the ban will have on yields is unclear. If we accept neonicotinoids work, then some farmers may get lucky and avoid disease carrying aphids or flea beetle infestations. But some could fall victim to the vagaries of nature. The EU's ban on neonicotinoids has removed a band-aid from a suppurating and seemingly incurable wound - the reliance of agriculture on chemicals that harm the environment. Should

 why we love someone without any reason

why we love someone without any reason

Understanding things is possibly how we want everything to be. After all, we donБt want to look like the naive and ignorant fish in a sea of the most intellectual and developing beings. Usually, we only embrace something when we learn about it simply because we donБt want to make a fool of ourselves. However, life is full of surprises. And occasionally, we encounter questions in life that we know no answers or experiences we canБt fully decipher what we did right or wrong to deserve. ItБs close to falling in love. We love a person but couldnБt get to the root of how, why, or till when. ItБs justБ you do. Sometimes we dwell to the idea as to why we could have fallen for someone who is completely opposite to us. We ask how we could have liked someone who didnБt even crossed half of our

 why is pregnancy calculated from last period

why is pregnancy calculated from last period

Congratulations! During these first two weeks, your body is preparingPfor possible conception. How is pregnancy calculated? Calculating the day your baby begins to develop and keeping track of your pregnancyPdates can be a challenge. The development of pregnancy is counted from the firstPday of the woman s last normal menstrual period (LMP), even though the developmentPof the fetus does not begin until conception, which is about two weeks later. Pregnancy is calculated from this day because each time a woman has a period,Pher body is preparing for pregnancy. Counting from the LMP, most women are pregnantPan average of 280 days. Calculating from the LMP also gives a standard of measurementPfor health care providers to follow since it is extremely difficult to knowPexactly when conception

 why do some adults still have baby teeth

why do some adults still have baby teeth

As your children grow, they gradually lose their baby teeth, which are formally known as deciduous teeth or primary teeth. This is a normal part of human development, and for kids it can be exciting Б especially when the Tooth Fairy brings them a few dollars per tooth. These primary teeth form in the womb prior to birth, and erupt when your child is still an infant. Over time, they loosen and fall out, to be replaced with new permanent teeth. But what if your child reaches their teenage years, but still hasnБt lost all of their baby teeth? For many reasons, baby teeth donБt always fall out on schedule. They can be lost early from trauma or dental disease, or they can linger much longer than usual. When Do Most Children Lose All Their Baby Teeth? The majority of children start losing baby

 why do the top of my hands bruise so easily

why do the top of my hands bruise so easily

Bruises develop when small vessels under the tear or rupture, most often from a bump or fall. leaks into tissues under the skin and causes the black-and-blue color. As heal, usually within 2 to 4 weeks, they often turn colors, including purplish black, reddish blue, or yellowish green. Sometimes the area of the bruise spreads down the body in the direction of gravity. A bruise on a leg usually will take longer to heal than a bruise on the face or arms. Most bruises are not a cause for concern and will go away on their own. Home treatment may speed healing and relieve the swelling and soreness that often accompany bruises that are caused by injury. But severe bruising, swelling, and pain that begin within 30 minutes of an injury may mean a more serious problem, such as a severe or. ...

 why do we have to say the pledge of allegiance

why do we have to say the pledge of allegiance

MassachusettsБ Supreme Judicial Court Б the stateБs highest court Б will hear arguments today in, a case in which an anonymous atheist couple is of the phrase Бunder GodБ in recitations of the Pledge of Allegiance in public schools. The plaintiffs, represented by the American Humanist Association, are appealing a lower court ruling that went in favor of the school district. With the school year getting underway around the country, here are five facts about the Pledge of Allegiance and its legal history: The original version of the Pledge of Allegiance did not include the words Бunder God. Б The patriotic oath Б attributed to a and published in a childrenБs magazine in September 1892 to commemorate the 400th anniversary of Christopher ColumbusБ voyage to America Б б read: БI pledge