Quote from: snehal50samarpit on June 03, 2011, 10:29:42 AM

Sir currently I am studying in +2 and I am not expert on this and also not good in physics ..here is the answer of my level and maybe it is  wrong.

Boss, I already knew that u were a school boy and i asked that question just for fun. i dint want u to answer that. Its only that there are infinite more questions like this and nobody can answer them in their lifetime. so chill and happy flying.

NO sir don't call me BOSS .I am a cool dude  .I don't take anything by heart .
Actually when u asked that question I really found myself unable to answer that one.So i took it as a challenge (challenge to me only  ,speaking to myself  that "what is this snehal u are in +2 and and u r not able to answer even this easy question) .So i got inspired from this and tried to find out the answer
at my level which even may be wrong.
Actually i am grateful to you coz u asked me dat question and i learned from it.

and i said i am currently in +2 so that even if my answer is wrong you can understand my level and correct it.

i can't always be right
u can't always be right
every person on this earth can't always be right.

But yes we learn things from our mistakes and also from forum like RCINDIA.ORG. 

Thnks
S.S.

ok S.S. try to answer these.

How far east can you go before you're heading west? 

If the universe is expanding, what is it expanding into? ( i feel Georg Cantor was right) 

If you have x-ray vision, and you can see through anything, wouldn't you see through everything and actually see nothing? 

Now sir dats not fair. .Dekhiye ab aap mujhko phasa rahe hai.

but i will try to answer these -

1st Greenwich prime Mediterranean line decides that.(i read bout it in class 6 or 7 so i think i forgot the answer)
I am confused  its wrong.
2nd out of my syllabus and also i really dont know .But i am interested to know it.
3rd  Cray cannot penetrate though evry objects in this world.  X-ray spectrum can only pass through some object like muscle,flesh and not object like bone.i exactly dont know how to differentiate.

Raising hand in class for a question is better than remaining quit in one corner.

this is awesome, believe me after so many years now it become clear to me that Wot does it mean when we say Time stops when we travel with speed of light.  This is known  to me from ages(I guess to all ) but I understood this concept now  ....

I hope it helped many of us in understanding many important concepts of physics.

This is the power of collective wisdom....

I have got a bio question.
accidently i touched a lizard in my house and after it, the tail of the lizard fell down .eeehh.
but the tail kept on moving like hell.
So my question is why that happened even if the tail was detached form the main body.??

This is called 'surviving technique' reflex action.
It is an important surviving technique and defense mechanism- lizards drop their tail to redirect the predator's attention and find a way to escape!
The reflex muscle movement is commanded by the brain, and so it wiggles! Smart lizards! lol 

It happens with every living organism! Check 'slaughter' videos on YouTUBE! You'll get a better idea- also get along a bucket to vomit after watching!

eeeeeeeeeeee................. but that SLIMY thing is REALLY UGLY!!!!!
Gosh! How can you touch a LIZARD???    

Good, one more learning

@ globalmind.
Actually i thought that there was some dirt or something like that .I went to swap it immidietly but ooohh my god ..eeeh ..after i touched it, it was n english lizard ( coz it was beautiful white lizard).It went away but left its wobbling tail.Actually i began to love lizards after watching shows on natgeo and discovery.Yeah they are beautiful creatures but they should not fall on somebody withot asking that should i land on you.happened with me 4-5 times.
I want to know when the tail was detached how can the brain give it commands.Its not like Tx giving command to the servos for the movement wih 2.4 ghz frequency.
So is their any wave ?(offcource not).what makes the tail move??Is there any potential energy stored in it?

Quote from: snehal50samarpit on June 11, 2011, 10:13:35 AM
I want to know when the tail was detached how can the brain give it commands.Its not like Tx giving command to the servos for the movement wih 2.4 ghz frequency.
So is their any wave ?(offcource not).what makes the tail move??Is there any potential energy stored in it?

Tail shedding is called autotomy and the movement is called modulated motor control. its like the tail having a mind of its own. Autotomy is the process by which an appendage is voluntarily shed from the body of an animal and has arisen independently many times. It occurs in reptiles, amphibians, mammals and many groups of invertebrates. It distracts predators during predator–prey interactions by providing a visual stimulus that entices the predator to attack the tail rather than the lizard. In addition, tail loss can significantly increase the running speed, which also enhances the ability of a lizard to escape a predator. Whereas tail loss is beneficial to the lizard in terms of acute survival, several costs are also incurred. For example, tails are very important for jumping, mid-air maneuvers (think of a Rudder) and for support while climbing. I hope this info helps. Thx

A link to add to your, interesting, info:

http://www.ncbi.nlm.nih.gov/pubmed/19740891

Thx for the link. Maybe he wanted an answer here instead of googling himself.

@crazyPilot Thnks sir that was the term and answer i wanted.
@thanks sushil sir for the link.it was really helpfull.

I googled it but was unable to find those .Thnks again.

On a similar note, in vertebral animals (including humans) the spinal cord has rich set of nerve cells that could make decisions instead of relaying information to the brain. Some of the involuntary actions like reflexes, reaction to pain will be dealt by the spinal cord. 

Further, I think the local nerve cells also react to pain as well. Sorry to sound gory but I have seen meat pieces shiver after a sheep has been freshly slaughtered...

Hey, I have another way to tell:
(Probably the MOST WEIRD)

Why Lizards drop tail- This happens usually with lizards having 30A ESC. The tail has a motor wires, the lizard during emergency shuts off the throttle and the current flowing in the motor via ESC rotates till the final current is cut! This causes the tail to move.
Bigger lizards with 5000mAh 3S have lesser response to tail movement. But if you short the terminals by putting your finger in between the jaws of lizard, you will get a freaky feel!
Smaller lizards with 1800kv have more speed in both tail and body, whereas bigger lizards with 1200kv have more power to run longer, but slower speed- we can say them as SLOW LIZARDS!
Slow lizards are usually not found, these days all lizards are using ZIPPY 2200mAh 3S 25C for better thrust and run! And lizards always prefer ZIPPY because they are good in hiding, they ZIP themselves in corners! LOL
Glow lizards are hard to find!
All lizards are 6 channels equipped!

These lizards are brushless! Have a look at the pic, sorry for bad art!

 

Milind, I think you are kind of obsessed with electric power system..

Wouldn't a brushless lizard have really nasty black smelly teeth/mouth ?   Unless of course, it has access to Listerine

PS: Sorry, but I really really felt the sudden urge to use that ROFL smiley !

Yes Izmile!!!! I am really obsessed with electronics and drums since I was in class III
I took countless participation all around and made whole lots of models, robo-designs, etc..etc....
I wish if I can show you my room- stuffed with these things!!!!!

@Anwar: LOL LOL LOL Listerine!!!!!!!

Quote from: globalmilind on June 11, 2011, 02:02:28 PM
Hey, I have another way to tell:
(Probably the MOST WEIRD)
...
...
These lizards are brushless! Have a look at the pic, sorry for bad art!

I got a charge out of this (actually for free)! And thereby hangs a tail

HI guys,:)  anybody know the trick for putting your hand palm on fire or burning candle without harming . Any solution??
hands should be bare.