Science Zone

Ever Wonder Why We laugh

Whether it's the snickering of your tyke or the excited hollers of a television show's studio gathering of people, we hear chuckling each day. Nothing could be more normal. 
 
However, in light of the fact that it's 
normal doesn't make giggling any less unusual. 
Case in point, whenever you're at the motion pictures getting a charge out of some comic drama blockbuster, listen hard to the giggling around you. 
 
Why are all these outsiders, as one, blasting into such peculiar, heaving, snorting clamors? 
Their giggles might all of a sudden quit appearing to be natural, and more like the cruel babble of feathered creatures or the shrieks of 
monkeys at the zoo. 
 
When you begin taking a gander at giggling as conduct, it can prompt some odd inquiries. 
Why do we? 
Isn't that right? 
Do creatures snicker? 
 
Also, why do we expect that any fair James Bond scoundrel will chortle malevolently when uncovering his arrangement for global control? What's so interesting? 
 
To answer these and different secrets of giggling, We dove into the shockingly argumentative universe of giggling examination. 
 
Why Do We chuckle? 
 
The answer may appear glaringly evident: We snicker when we see something entertaining. In any case, the self-evident answer is not right, in any event more often than not. 
 
"Most giggling is not in light of jokes or funniness," says Robert R. Provine, an educator of brain research and neuroscience at the University of Maryland Baltimore County. We ought to know, he has led various investigations of giggling and created the book Laughter. 
 
One of his focal contentions is that funniness and chuckling are most certainly not indivisible. 
Provine did an overview of chuckling in the wild - he and some graduate understudies listened in on normal discussions out in the open spots and made notes. 
Also, in a review of 1,200 "snicker 
scenes," he found that just 10%-20% of snickers were produced by anything taking after a joke. 
 
The other 80%-90% of remarks that got a snicker were dull non-witticisms like, "I'll see you all later" and "It was decent meeting you, 
as well." 
 
So why the snickers? 
Provine contends it needs to do with the transformative improvement of giggling. 
In people, chuckling originates before discourse by maybe a great many years. Prior to our human precursors could converse with one another, chuckling was a less complex technique for correspondence or communication. 
 
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Ever Wonder Why We laugh

Whether it's the snickering of your tyke or the excited hollers of a television show's studio gathering of people, we hear chuckling...

How Mosquito Locate And Buzz in Our Ears

Typical of Africa, we heard odd stories, should I say myth about mosquito and ear. 
According to the story, the mosquito always visit the ear to remind it (ear) of the taunt that he (mosquito) is not a weakling. 
 
Here I will be talking how the mosquito locate and buzz in our ears. 
It all resulted as a dedication of a mother to bear her youngsters, 
natural basic however it might be, can deliver some amazing conduct. 
 
Out of the 3,000 known species 
of mosquitoes, a male mosquito has never been willing to feast on blood for his children. 
 
In many species the female requires a feast of blood to help in egg creation, not withstanding her standard eating routine of nectar. 
 
To observe casualties, the mother-to-be takes after signs like our body warmth, dampness and carbon dioxide discharges. 
 
Specifically, the carbon dioxide we 
breathe out draws in the bug to our heads, where they fly around searching for a delectable spot. 
And this is exactly how mosquitoes locate our ears in case if you're wondering how. 
 
The obvious buzz that goes before the jab of her proboscis is not some throaty pre-supper effortlessness, 
but instead the shrill whimper of quickly beating wings.

How Mosquito Locate And Buzz in Our Ears

Typical of Africa, we heard odd stories, should I say myth about mosquito and ear. According to the story, the mosquito always visit the ea...

Why We Cry When We Laugh Too Hard

Why do we cry when we giggle too hard? We cry when we're pitiful however why do we cry when we're excited by something? Being mise...

Optical Illusion, Explanation of The Mystery Behind These Images

<div xmlns='http://www.w3.org/1999/xhtml'>Wondering how this possible? 
 
Well this is the possible explanation. 
When you look at the white layer on the picture, what you should see is a full color representation of the image as your retina/brain processes the negative image. 
 
Our visual system is constantly 
processing input and can fool us or create illusions from retinal or cortical processes. This illusion example is called a negative after-image that is caused by adaptation of the photoreceptors in the retina. 
 
Forcing ones eyes to fixate on a point (in this case the grey dot 
on Laura Galloway ‘s nose reduces the normal jitter or micro saccades that constantly occur as we scan things in our visual world. 
 
The micro saccades normally cause images to dance over the surface of the eye eliminating the possibility of too much adaptation if an image remains static over one group of photoreceptors for too long. 
 
In fact, if one were to eliminate all movement of the eye, and we were to fixate on a single point, our 
perception of our visual world would fade away. 
 
So, what happens in this illusion is that when we look from the first image to the white space or to 
a large plain surface, the photoreceptors that become adapted no longer signal effectively, but the photoreceptors surrounding the adapted photoreceptors strongly signal perhaps signaling opponent cells in the lateral geniculate nucleus (LGN) involved in color vision. 
 
Though other evidence from Dacey, He, and MacCleod. suggests that opponency is not necessary to explain the illusion. 
 
 
To those who didn't see the beauty others saw. I just reinverted the picture for it to be visible for everyone. 
 
<a href='https://lh3.googleusercontent.com/-gPm5jE4jgaM/VgkIzAaVjJI/AAAAAAAAAI0/LMPHWWXMRV8/s2560/1443432648943.jpeg' onblur='try {parent.deselectBloggerImageGracefully();} catch(e) {}'><img border="0" src="https://lh3.googleusercontent.com/-gPm5jE4jgaM/VgkIzAaVjJI/AAAAAAAAAI0/LMPHWWXMRV8/s350/1443432648943.jpeg" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;"/></a> 
 
<a href='https://lh3.googleusercontent.com/-QMZv6H0rEvY/VgkI03k_ZzI/AAAAAAAAAI8/gm5H8N8u8Zs/s2560/1443432653489.jpeg' onblur='try {parent.deselectBloggerImageGracefully();} catch(e) {}'><img border="0" src="https://lh3.googleusercontent.com/-QMZv6H0rEvY/VgkI03k_ZzI/AAAAAAAAAI8/gm5H8N8u8Zs/s350/1443432653489.jpeg" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;"/></a></div>

Optical Illusion, Explanation of The Mystery Behind These Images

Wondering how this possible? Well this is the possible explanation. When you look at the white layer on the picture, what you should see...

It's Supermoon Day

It’s that time of year again – a bright supermoon will appear in the night sky. 
Except that the supermoon may not appear that, well, super to make our earthbound eyes. 
 
“If you had a regular moon 
right next to a supermoon you could definitely see the difference, but you really won't be able to notice much of a difference just looking at it in the sky,” said Mike Narlock, head astronomer at 
Cranbrook Institute of Science, to CBS . 
 
An ever so slightly larger 
version of a full moon is 
called a supermoon, or more 
technically, a lunar perigee. 
The moon appears bigger because it orbits closer than usual to Earth. To the right is a comparison image of a full moon 
(left) and a supermoon (right). 
 
Still, in case you’re 
interested, the perigee will occur on Sunday, August 30 at 11 
a.m. EDT (1500 GMT), according 
to <a href='http://space.com'>space.com</a>. At that time, the×moon will be around 222,631 miles (358,290 kilometers) 
away. 
 
Unfortunately, that’s not the best time for those of you in North America. Your best bet is to view the full moon, which will be close to a perigee, on Saturday evening, August 29. 
 
Although the supermoon may not appear as lustrous as its name, the closer distance is important. When the moon orbits this near to Earth, the ocean 
tides become stronger. Thus, on the day of the supermoon and for three days after, the Earth 
will experience larger than typical tides. 
 
If you’re not in the mood to see a slightly larger moon, then perhaps check out the tides in your local area. Or even better, combine the two. 
 
Credit: <a href='http://ifls.com'>IFLS</a> 
<a href='https://lh3.googleusercontent.com/-G1kwPrnw8jQ/VeIS5251bBI/AAAAAAAAAHY/tJDHM5fZwqo/s2560/1440879334242.jpeg' onblur='try {parent.deselectBloggerImageGracefully();} catch(e) {}'><img border="0" src="https://lh3.googleusercontent.com/-G1kwPrnw8jQ/VeIS5251bBI/AAAAAAAAAHY/tJDHM5fZwqo/s350/1440879334242.jpeg" style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;"/></a>

It's Supermoon Day

It’s that time of year again – a bright supermoon will appear in the night sky. Except that the supermoon may not appear that, well, super ...

Ten Facts About Light

<div xmlns='http://www.w3.org/1999/xhtml'>1. Greeks thought our sight came from something dashing out of the eyes and into objects. 
 
2. The first determination of “c”, the speed of light in a vacuum, was made by a Danish astronomer using the motion of the moons 
of Jupiter. 
 
3. In glass light slows down a bit, bending its trajectory and allowing the making of lenses. 
 
4. Particles traveling faster than light IN A MEDIUM, release a form of luminous shock wave called Cerenkov radiation that we see 
as deep blue light. 
 
5. Different colors have slightly different speeds in water, making them bend in slightly different angles. That causes the 
rainbow when water droplets are in the 
atmosphere. 
 
6. Light from the Sun takes 8 minutes and 17 seconds to reach us, but inside the sun the energy takes millions of years to go 
from the center to the surface. 
 
7. Humans, just like apes and monkeys, have three color receptors that allow us to see all colors. Birds and other non-mammals 
have four color receptors which means they can see many more colors than we do. 
 
8. The Hubble telescope photographed several galaxies receding from us at speeds above the speed of light. 
 
9. When Maxwell developed the equations to describe Electricity and Magnetism, some solutions were waves with about the speed of light. That was later confirmed, and Optics became a part of his theory. 
 
10. The difference of the speed of light according to the density of a substance is responsible for ghost cities travelers see in the desert, and is the process that allows the manufacture of fiber optics.</div>

Ten Facts About Light

1. Greeks thought our sight came from something dashing out of the eyes and into objects. 2. The first determination of “c”, the speed of ...

Why Healing Wounds Itch?

<div xmlns='http://www.w3.org/1999/xhtml'>We are told that if a cut is itching it is healing, and that scratching itches is bad for healing, why have we evolved this tendency to cause the healing cut to itch? 
 
Answer 
There are special nerves in the skin, and this has only been discovered in fairly recent times as in the last few years, but there are itch specific nerve fibres in the skin, and their job solely is to signal to the A comparative picture of untreated 7-days-healed road rash in the form of a scar one year later. 
 
Fresh wound is on the right, and scar is on the 
left spinal cord that an area of the skin is being irritated in a way that we would perceive as itchy. 
 
Those nerve cells are activated in a number 
of ways. One of them is mechanically. So, if you have an insect crawling on you for example, the insect crawling over your skin elicits the right kind of stimulus that those nerve cells are interested in, 
and they are triggered. So you are therefore paying attention to that bit of 
skin because there might be a bug which is biting you, which might be about to give you malaria or something. 
 
So that's the first point, it’s mechanical. 
The nerve cells are also sensitive to chemicals and there are certain chemicals which when you put them in your skin, 
they're irritants. As a result, they make you think, “Oh! I've got an itchy patch of skin again.” You pay attention and you 
brush away the irritant chemical. 
 
Now when you have a wound, the wound closes by cells around the margins of the 
wound, proliferating, in other words, growing and they then migrate from the 
margins of the wound, down into the base of the wound. They actually follow the 
electrical gradient, a guy in Aberdeen discovered in the last 5 years or so that 
the inside of the wound is at a different voltage than the margin, and the cells flow down this electrical gradient, so they know where the base of the wound is. 
They then unite with their cellular counterparts, and stitch themselves into 
place. Then they start to contract, contractile filaments which pull the wound closed. 
 
So as they do that, they're eliciting a mechanical stress which the itch sensitive nerves will respond to and at the same 
time, there are various other factors which 
get released in a healing wound, chemicals which provoke healing in the wound, but also, up-regulate the activity of these itch sensitive nerves. 
 
So therefore, a wound that's closing up will feel itchy for mechanical and chemical reasons which are precisely the reasons why those nerve cells get stimulated in the 
first place. 
So that's the reason.</div>

Why Healing Wounds Itch?

We are told that if a cut is itching it is healing, and that scratching itches is bad for healing, why have we evolved this tendency to caus...

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Ever Wonder Why We laugh

How Mosquito Locate And Buzz in Our Ears

Why We Cry When We Laugh Too Hard

Optical Illusion, Explanation of The Mystery Behind These Images

It's Supermoon Day

Ten Facts About Light

Why Healing Wounds Itch?

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