10 Interesting about Dolphin Facts

We know Dolphin is a cheerful fish, playful, active, smart, and sometime they do not mind to help human who trapped in life-threatening situations on the ocean. I personally love dolphins and here, I like to talk about 10 interesting fact about dolphins you have never known before.
1. Smallest and Largest Dolphin

Orca

Dolphins are available on different size and name and in the classification the smallest dolphin in the world, we have Porpoise vaquita (Phocaena sinus), which lives in Sea of Cortez. The length is mere 1.5 meter or 5 feet and the weight is 110 pounds/50 kg. At the other side, the biggest dolphin’s species in the world belong to Orca, which can weighting up to 6 tons and lengthen 27 feet long or 8 meters

2. Amazing features of DolphinSince they were born, Dolphins has amazing features such as adaptable eyes, ultrasound sensory, and special skin, which make dolphin warm called blubber. Out of their smelling sense, Dolphin always has something special

3. Dolphin’s herdDolphin is rarely live solely. Most dolphins are living on a herd and each group can compose view up to a thousand dolphins or more. Usually, the herd positioned the females on the inner march and 3 to 4 fertile females commonly surround the dominant one
4. Dolphin Defense mechanismInstinctively, Dolphin has natural defense mechanism to keep half of their brain active while they are sleeping. When the half brain is active, the other half is idle or resting. However, A Dolphin which was born in the zoo seems does not need to do this
5. Special Mammal

Bottlenose

No matter how long they live under the ocean, Dolphins is always a mammal. To pump their blood they need oxygen just like a human. However, unlike us, Dolphin only needs half-second to inspire new oxygen and keep it for 15 minutes. Almost all dolphins can do this include infamous bottlenose dolphin.
6. Dolphins communication
Dolphins communicate using different signals start from clicks, pulses, whistle and combination of all these signals. Their echo sounder routes from 250Hz until 220 kHz and they commonly use the acoustic sonar to draw mental images, to locate preys, to communicate and to map submarine objects
7. Amazing Hunting skillDolphin has unique hunting techniques and they mainly advantage the number of their group and ultrasound communications they master to circle shoal and direct them off the water. Once the shoal reaches the surface and panic, dolphins jump to the panic shoal and they swallow these fishes as much as they can. Occasionally, anglers and marine predators follow the event.
8. Female DolphinA male dolphin mates for breeding and recreations. It usually last for 15 to 20 seconds and if the female fertile, it will gestate 10 months or 1 year to breed a new calf. Once the calf was born, the female dolphin will milk the calf up to 9 months. During this period, the calf sucks 3.4 liters daily and before their lips fully developed, the calf uses their rostrum to eject the milk from the nipple
9. Amazing abilitiesDolphins are born for the sea and as mammals; they are perfect swimmer, strong diver, and high jumper. Some species can swim fast underwater up to 40km/hour, submerge 300 meters deep, hold oxygen up to half hour, and jumped off the water 6 meters high. Bottlenose dolphin is one of them
10. Best Men’s friend on the sea

Dolphin therapy

Last dolphin facts, Dolphin is one of men best friends. Sometimes they help anglers net more fishes, assist safe patrol finding sunken ships, help swimmer from drowning or sharks, and aids doctors to cure autistic children and loads more.

source: http://www.factsofworld.com/dolphin-facts

read more

Top 10 Things You Didn’t Know About Your Eyes

Few people could argue that without our 5 senses life would be pretty dull. All our senses are extremely important but I think if you asked most people which sense would they least like to lose they would probably say their vision. As with most of our abilities, our vision is something that many of us take for granted. If you stop and think for a moment, you will realize that just about everything we do in our day to day life involves our vision. During this article I am going to try and see if I can get you to start thinking a little bit more about your eyes. Listed below is my top 10 list of weird and wonderful things you didn’t know about your eyes

10.  Everyone needs reading glasses as they get older

This is assuming that you already have perfect distance vision. If you are currently reading this article and are under 40 years of age with perfect distance vision, I can say with absolute certainty that you will need reading glasses at some point in the future. For about 99% of the population the age that you will first start needing reading glasses is between 43 and 50 years old. This is because the lens in your eye slowly loses its focusing ability with age. In order to focus things near to you, your lens has to change from a flat to a more spherical shape and it loses the ability to do this as you get older. As you get to around 45 years old you will start to hold things further away from you to keep them focus.

9.  The lens in your eye is quicker than any camera lens

Just behind the pupil sits the eyes natural lens, whose function is to focus on the object you are looking at. Just take a minute to glance around the room and think about how many different distances you are focusing at. Every time you do this, the lens in your eye is instantly changing focus without you even being aware of it! Compare that with a camera lens which takes a few seconds to focus between one distance and another. Just be thankful that the lens in your eye is as quick as it is, otherwise things would be continually going in and out of focus.

8.  Your eyes are fully developed by the age of 7 years old

By the age of 7 years old our eyes are fully developed and are physiologically the same as adult’s eyes. It is for this reason that it is vitally important to pick up a lazy eye before we reach this age. The earlier a lazy eye is diagnosed, the greater the chance it will respond to treatment, as the eyes are still developing and capable of an improvement in vision. Beyond 7 years old no amount of treatment will result in any improvement in vision.

7. You blink approximately 15,000 times each day

Blinking is a semi- involuntary function meaning we do it automatically, but can also choose to blink if we so require. Blinking is an extremely important function of your eyes as it helps remove any debris on the surface of your eye, by spreading fresh tears over them. These tears help to nourish your eyes with oxygen and also have important anti bacterial properties. You can think of the function of blinking as being similar to the action of the windscreen wipers on your car, cleaning and removing everything to keep you seeing clearly.

6.   Everyone gets cataracts as they get older

 

People don’t realize that cataracts are just a normal consequence of getting older and everyone gets them at some point in their life. You can think of cataracts as being similar to getting grey hair, in that it is just a normal natural age change. The average age people first get cataracts is about aged 70 years old and by 80 years old you are guaranteed to have cataracts. In the same way that you could not find any aged 80 years old without grey hair, it would be equally impossible to find anyone over 80 years old without cataracts. Cataracts refer to a gradual clouding of the lens in your eye and typically take about ten years from onset to them needing treatment.

5.  Diabetes is often first detected during an eye test

People who suffer from type 2 diabetes (the type you develop later in life) are often symptom free, meaning they often don’t even know that they have it. This type of diabetes is commonly picked up during an eye test as it can be seen as tiny hemorrhages from leaking blood vessels at the back of your eye. This certainly is good reason to get your eyes tested regularly.

4.  You see with your brain and not your eyes

The function of your eyes is to collect all the required information about the object you are looking at. This information is then passed from your eye to the brain via the optic nerve. It is the brain (visual cortex) where all this information is analyzed to enable you to ‘see’ the object in its finished form. This is not to say that your eyes don’t play an important role as they certainly do.

3. Your eyes can adapt to blind spots in your vision

Certain eye conditions such as Glaucoma and certain general health conditions such as having a stroke, can lead to you developing blind spots in your vision. This would be extremely debilitating if it wasn’t for your brain and your eyes ability to adapt to make these blind spots disappear. It does this by suppressing the blind spot in your affected eye and letting your other good eye ‘fill in the gaps’. It is adaptation like this that makes your eyes so resilient.

2.  20:20 vision is not the best vision you can have

When people hear the phrase 20:20 vision they assume that this is the best vision possible. However this is not true as 20:20 vision refers to what the average adult should be able to see. If you imagine a typical eye test chart the 20:20 vision is probably only the line second from the bottom. The line below it is even smaller than 20:20 vision and would mean you have 20:16 vision. So don’t be so impressed next time someone tells you they have 20:20 vision!

1. Your eyes water when they are dry

I know this might sound crazy but this is one of strange facts about your eyes. Your tears are made up of 3 different components and they are water, mucus and fat. If these 3 components are not in exactly the right quantities, your eyes can become dry as a consequence. Your brain responds to this dryness by producing extra water and hence your eyes water.

Read more: http://www.toptenz.net/top-10-things-you-didnt-know-about-your-eyes.php#ixzz1bpwNyH2T

read more

10 Very Rare Diseases Found in Human Body

When we think of a rare disease, we think of something unusual and at its extreme. Nonetheless, rare diseases are genetic in nature and could only affect a small percentage than the common diseases that can be found in some people. It suggests that there are problems with gene patterns or there are missing genes that causes abnormalities in some form that cannot be induced in any way since it happens so unusually. It is also called as orphan disease since there is a lesser availability of treatments. These are not really anticipated out of specified numbers of people who have it. Let us check this list then see what are the diseases that you have not yet heard before and how it begins to these people.

10. Werewolf Syndrome

It is called werewolf because there is an abnormal amount of hair growth on the human body parts such as the face, arms, and hands. Nonetheless, in medical terms, it is called as Hypertrichosis or Ambras Syndrome. It can be classified as localized hypertrichosis or the generalized type. Studies have shown that it can be congenital, which means that an individual has it on his or her genes even before birth or it can be acquired.

9. Ehlers-Danlos Syndrome

The other term for this is Cutis Hyperelastica, which is actually a defect, found in the synthesis of collagen with a group of inherited connective tissue disorders. When collagen is not developed, it affects the right form of the body that would cause human deformity. As another term stated, there is an extensive elasticity occurring on the skin and few of the individuals who are diagnosed of it has very thin skin.

8. Elephantiasis

This is opposite of the Ehlers-Danlos Syndrome wherein there is a thickening process that happens on the skin that most commonly happens in the legs of most males. This is also called as Lymphatic Filariasis, which is actually caused by parasitic worms called Wuchereria Bancrofti, B. Timori, and Brugia Malayi that affects the lymphatic system. This is done through transmission being carried by mosquitoes. It is an extreme case of large inflammation that can be found on the head, torso, and limbs.

7. Cutaneous horns

 

These are uncommon keratinous skin tumors, which are in the form of horns. It grows on human feet and hands. In most cases, it is benign. But at times, premalignant or malignant. This happens to adults, especially those who are frequently exposed in the sun and have fair skin where lesions might occur thereafter.

6. Moebius Syndrome

It is a neurological disorder where the 6^th to 7^th cranial nerves are affected. It includes the eye and face muscles that results to partial or total facial paralysis. If this occurs to babies, there is a strong inability for the child to be fed through sucking. Some other characteristics of this disease are crossed eyes, inability to move the head, lack of facial expressions, and inability to smile. This happens when the facial nerves are underdeveloped, which is identified to genetic causes that have not yet been proven.

5. Blaschko Lines

These are skin lines, which cannot be seen under normal situations. It can be seen if there are triggering skin diseases where patterns become apparent or visible at all. It appears on wavy shapes on the head, chest, sides, and stomach. According to studies, it is caused by the migration of the embryonic cells, which are not in line with the human muscular and lymphatic or nervous system. In fact, this is found on animals like dogs and cats.

4. Pica Syndrome

This is a kind of disorder that typically happens to children and pregnant women wherein there is a strong craving to eat non-food substances or materials such as paper or dirty items. This condition is actually associated to a bird called magpie that tends to eat anything. It is really common to women and children. It could be diagnosed as mental autism for the kids, which is believed to be caused by mineral deficiency such as iron.

3. Argyria

It is strongly characterized with a blue or gray discoloration on the skin, which is caused by an excessive exposure from silver or an ingestion of silver salts, which are found in certain medical prescriptions. People who are prone to have this disease are those who work in mining industries that works on silver extraction and even those who are doing photographic processing.

2. Fibrodysplasia Ossificans Progressive

This is a disorder on connective tissues and muscle tissues like ligaments and tendons, wherein there is a new bone being formed outside the skeletal system that limits the movement of the individual, induces the inability to talk, and limited diet that later would result to malnutrition. The ratio for this disease is 1 out of 2 million people in the world.

1. Ichthyosis

It is a skin disorder wherein there is an excessive amount of dry surfaced scales that happens at an early age. This is hereditary, meaning; it can be passed on to the next generation. It is classified because of the abnormal epidermal differentiation or metabolism, making a person look like a tree.

source: http://www.tiptoptens.com/2011/10/31/10-very-rare-diseases-found-in-human-body/

read more

Top 10 Uses For Radiation Besides Making Electricity Or Blowing Stuff Up

With Japan’s earthquake-spawned nuclear tragedy gobbling up all the attention in the headlines these days, it’s easy to question why mad scientists ever thought it would be a good idea to boil water with uranium and plutonium? Few natural effects are as misunderstood by the public as radioactivity and radiation. The truth is there are many uses for radiation that are safe and beneficial outside of generating power or blowing stuff up with bombs. In light of the nuclear tragedy in Japan, here are my  top 10 uses for radiation that are not making electricity or blowing stuff up.

10. Security

If you’ve been through an airport recently, you’re probably all too familiar with x-ray baggage checks and their redheaded cousins, those controversial backscatter machines. X-ray security machines share ancestry with and use similar radiation as the devices your dentist uses to snap pics of your tooth decay.  What you might not have realized is that radiation also plays a role in detecting explosive and narcotic traces. By utilizing ion mobility spectrometry, these machines are able to “smell” the trace elements found in most explosives, hopefully ensuring you reach your destination without your plane exploding.

9. Space Exploration

Interstellar space is a cold dark place–so cold (approaching absolute zero) that spacecraft need to keep critical moving parts warm so that they don’t freeze and lock up. NASA solved this problem by placing heating elements containing radioactive material in the critical areas. As the material decays, it gives off a small amount of precious heat which keeps important parts like camera mounts and sensor doors moving at near absolute zero temps.

8. Measurement

Special devices and gauges that utilize radiation are used throughout manufacturing and industry to make super accurate measurements of stuff that wouldn’t normally be detectable by other conventional means. Whether you want to check for defects in welds, fluid levels in sealed systems, or make incredibly accurate, tiny physical measurements, radiation is your go-to tool for the job.

7. Sterilization/Irradiation

Patients with compromised immune systems who require blood transfusions can develop severe problems if they are exposed to foreign antibodies and bacteria from donors’ blood. The solution–expose the donated blood to some good old fashioned radiation to kill off the unwanted antibodies while keeping the red cells intact. The same process also extends the shelf life of some of your favorite foods. Usually foods are sterilized with heat (pasteurization) to kill off the bacteria present, or refrigerated to slow the decay. By irradiating foods to kill off the unwanted microbes, you can preserve food that can’t traditionally be pasteurized or refrigerated.

6. Carbon Dating

Carbon 14 breaks down radioactively over time at constant rate. Because of this fact, scientists use the ratio of carbon 14 isotopes within an object to figure out the object’s approximate age. With this tool we’ve been able to accurately date items like dinosaur bones and early human remains, broadening our understanding of natural history and solving age old riddles like, “did men walk with dinosaurs?”

5. Promoting Genetic Mutation

Radiation’s ability to mess with your DNA and cause everything from cancers to superpowers is well documented in pop culture lore from comic books to movies, but could that ability be put to use for good? By exposing seeds to doses of radiation, growers are causing genetic mutations in their seeds on purpose. Unlike what you may have read in the comics, mutations from radiation can actually help growers evolve beneficial plant traits like insect and pesticide resistance.

4. Clean Air

Clean Coal is one of those buzz words thrown around by politicians, but very few realize that one way we scrub our smokestack emissions is by zapping them with electron beam radiation. The scourge of environmentalists everywhere, radiation, is ironically one of the best ways we combat acid rain and remove chemicals like sulfur dioxide from smoke before they go out in to the world and pollute.

3. Smoke Detectors

Ever change the battery on your smoke detector and notice the warning saying there’s a radioactive substance inside the device? Many older smoke detectors utilize a radiation emitting substance, americium-241, to sniff for smoke. When a smoke particle breaks the stream of radiation between the americium and a detector, the alarm sounds, giving you the precious few seconds extra warning to get out of the house or an annoying reminder that you just burned your roast.

2. Nuclear Medicine

One of the greatest dangers from nuclear fallout is ingestion of small radioactive particles that can wind up lodged in your body causing cancers and other problems. So why in your right mind would you ever purposely ingest a radioactive substance? By sending a radioactive material throughout the body, doctors can look at the radiation coming out and determine all sorts of important things like organ function, blood flow, and even detect certain cancers.

1. X-Ray Imaging

Wilhelm Rontgen put his discovery of X-Ray radiation to use for medicine back in 1895 by taking an image of the bones in his hand. Since then it’s hard to imagine having a modern medical procedure or diagnosis without first having X-Ray images. Simply by allowing doctors to peer inside our bodies and see what’s going on, radiation has probably saved countless more lives than it has claimed.

Read more: http://www.toptenz.net/top-10-uses-for-radiation-besides-making-electricity-or-blowing-stuff-up.php#ixzz1cWBTG1VE

read more