Interesting Facts of Life
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Do you know?
Human blood travels at a speed of 100,000 kilometers per day.
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Ever wonder why is it easier to remember faces than names?
When we see a face, we try to recognise it - establish whether or not it looks familiar - whereas when we see someone we do recognise and try to think of their name, we have to recall it.
Recall is generally more difficult than recognition because in order to reach the part of the brain where names are stored, we must process other information about how we know that person, such as, "She's an actress, I saw her on TV last week."
These extra steps are why we often find ourselves struggling to remember what someone is called, even though we do know who they are. -
What causes travel-sickness, and why doesn't everyone get it?
Fluid in the canals of the inner ear sloshes around when you're in motion, causing the tiny hair cells to send contradictory nerve impluses to the brain.
If you are reading or looking at the inside of the car, your eyes signal to your brain that you are not moving, whereas the inner ear tells it that you are. The disorientation can make you feel nauseous. Switching your vision between close and distant objects can help to prevent this feeling, which is why drivers are less often travel-sick than passengers.
Young People are more susceptible because as you get older, or becom a more sesoned traveller, the inner ear becomes less sensitive. -
I am still amazed with your energy, educating me.
Nvm, thank you for your efforts. Wish you best of luck.
Best Regards
SBS3624G -
thank you. i enjoy and take pride in educating people with fun facts.Originally posted by SBS3624G:I am still amazed with your energy, educating me.
Nvm, thank you for your efforts. Wish you best of luck.
Best Regards
SBS3624G
do come often. -
Originally posted by Gordonator:
thats fast
[b]Do you know?
Human blood travels at a speed of 100,000 kilometers per day.[/b] -
Originally posted by Gordonator:
well i dun get it since young means im old inside?
[b]What causes travel-sickness, and why doesn't everyone get it?
Fluid in the canals of the inner ear sloshes around when you're in motion, causing the tiny hair cells to send contradictory nerve impluses to the brain.
If you are reading or looking at the inside of the car, your eyes signal to your brain that you are not moving, whereas the inner ear tells it that you are. The disorientation can make you feel nauseous. Switching your vision between close and distant objects can help to prevent this feeling, which is why drivers are less often travel-sick than passengers.
Young People are more susceptible because as you get older, or becom a more sesoned traveller, the inner ear becomes less sensitive.[/b]
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Why can't you tickle yourself?
The human brain can tell which sensations are caused by our own actions, and gives them low priority. That way, it can be more receptive to stimuli from outside sources that may be more urgent, such as the pain of buring your hand, or the sound of a crying child.
Being tickled by someone else can reduce you to a squirming jelly, but when you try to tickle yourself a message called the corollary discharge is sent around the brain, which anticipates your actions and dulls the sensation.
A recent study using magnetic resonance imaging scanner to map brain activity, suggests that the cerebellum - the part of the brain that controls movement - is involved in processing the corollary discharge. -
How come we don't feel the pain immediately when hit by serious injury?
Under conditions of extreme stress, such as serious injury, brain signals tell the body to produce endorphins and enkephalins, similar in chemical structure to morphine. The speed and shock of an attack can trigger production of enough of these chimicals to delay the pain. -
Originally posted by Gordonator:
sure or not?
[b]Do you know?
Human blood travels at a speed of 100,000 kilometers per day.[/b]
blood travels at a speed of 4,167 km/h?
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100% plus guarantee plus warranty sure. see, you learnt something today.Originally posted by poon cho tang:sure or not?
blood travels at a speed of 4,167 km/h? -
dat's way faster than the speed of sound (1,246 km/h)Originally posted by Gordonator:100% plus guarantee plus warranty sure. see, you learnt something today.
sure boh? -
u don't trust gordon's world of facts ah?Originally posted by poon cho tang:dat's way faster than the speed of sound (1,246 km/h)
sure boh? -
but this works agst my common senseOriginally posted by Gordonator:u don't trust gordon's world of facts ah? -
so be it. suit yourself.Originally posted by poon cho tang:but this works agst my common sense -
but traveling faster than speed of sound will cause shock waves to be generated leh....
like sonic boom? maybe becuz lack of air or surroundings in the blood vassels so thats why its possible ?
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Wow, why dosen't blood spurt out at mach 4 when I sustain a serious laceration.
Also, this means that blood travels much faster then nerve conducting velocity.
Hmm... I'm not sure about 100,000 km a day, but I do know that the combined length of all the blood vessels in our body exceeds that length. Maybe what he was trying to say is that our total volume of blood travels this length in a single day, not that the blood is travelling at 4,000+ kph, but that the entire volume of blood manages to total this distance per day, via means of concurent travel, but of course, the velocity of individual blood cells is way below that. -
how fast oxygenated blood travel? like athelets training on top of mountains...etc
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yes...u solved itOriginally posted by SingaporeTyrannosaur:Wow, why dosen't blood spurt out at mach 4 when I sustain a serious laceration.
Also, this means that blood travels much faster then nerve conducting velocity.
Hmm... I'm not sure about 100,000 km a day, but I do know that the combined length of all the blood vessels in our body exceeds that length. Maybe what he was trying to say is that our total volume of blood travels this length in a single day, not that the blood is travelling at 4,000+ kph, but that the entire volume of blood manages to total this distance per day, via means of concurent travel, but of course, the velocity of individual blood cells is way below that. -
what if you slash someone's artery open?
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You'll fly backwards from the recoil.Originally posted by SingaporeMacross:what if you slash someone's artery open? I think its distance, not speed. -
Originally posted by Gordonator:
Actually there is more to this, but too much info to post it here.
[b]Ever wonder why is it easier to remember faces than names?
When we see a face, we try to recognise it - establish whether or not it looks familiar - whereas when we see someone we do recognise and try to think of their name, we have to recall it.
Recall is generally more difficult than recognition because in order to reach the part of the brain where names are stored, we must process other information about how we know that person, such as, "She's an actress, I saw her on TV last week."
These extra steps are why we often find ourselves struggling to remember what someone is called, even though we do know who they are.[/b] -
how about u summarize it for us.Originally posted by DeadPoet:Actually there is more to this, but too much info to post it here. -
Do you know?
Planet Earth weighs 5,972,000,000,000,000,000,000 tons.
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Originally posted by Gordonator:
my classmate weighs 0.1 tons
[b]Do you know?
Planet Earth weighs 5,972,000,000,000,000,000,000 tons.[/b]