It's a bird,It's a plane,It's the superm..........no it's a glass crack.
This message in no means tends to promote the ongoing superhero movie release.But this is General Eerie's WEIRD FACT :DAY 1 for his fellow earthians.
You might have seen or heard glass breaking several times.(I am a regular viewer as i play cricket : 0 )But have you ever ruminated how fast does a piece of glass break???
LISTEN HERE: a glass crack can travel up to an electric velocity of 19000 km/h.This bold velocity is 15 times the velocity of sound in air.So if anyone tries to break a piece of glass with a breadth as same as distance between Delhi and Jaipur,he or she will do it in less than a minute.
EXPLANATION IN SCIENCE:Scientists from the Max Planck Institute for Metals Research in Stuttgart and IBM Almaden Research Center in San Jose, California study the dynamics of cracks using the world’s most powerful computers, whereby the motion of every single atom in the material is calculated according to Newton’s laws of motion.The researchers discovered that cracks can propagate supersonically when hyperelasticity, the elasticity at large strains, becomes dominant within a zone of high energy transport near the crack tip.Cracks moving in solids absorb and dissipate energy from the surrounding material.The crack does not need to transport energy from regions far away from its tip, rather only from a small local region described by the characteristic length scale.If the region around the crack tip becomes stiff due to hyperelasticity, more energy can flow to the crack tip in shorter time.When hyperelasticity dominates, cracks can move faster than all elastic waves.
EXPLANATION IN ENGLISH:Materials like glass and rubber defy the common Hooke's Law of Elasticity.Under large strains,the cracks acquire high velocities due to the available abundant energy.This phenomenon is also viable when a rubber bursts.
do leave your responses....
You might have seen or heard glass breaking several times.(I am a regular viewer as i play cricket : 0 )But have you ever ruminated how fast does a piece of glass break???
LISTEN HERE: a glass crack can travel up to an electric velocity of 19000 km/h.This bold velocity is 15 times the velocity of sound in air.So if anyone tries to break a piece of glass with a breadth as same as distance between Delhi and Jaipur,he or she will do it in less than a minute.
EXPLANATION IN SCIENCE:Scientists from the Max Planck Institute for Metals Research in Stuttgart and IBM Almaden Research Center in San Jose, California study the dynamics of cracks using the world’s most powerful computers, whereby the motion of every single atom in the material is calculated according to Newton’s laws of motion.The researchers discovered that cracks can propagate supersonically when hyperelasticity, the elasticity at large strains, becomes dominant within a zone of high energy transport near the crack tip.Cracks moving in solids absorb and dissipate energy from the surrounding material.The crack does not need to transport energy from regions far away from its tip, rather only from a small local region described by the characteristic length scale.If the region around the crack tip becomes stiff due to hyperelasticity, more energy can flow to the crack tip in shorter time.When hyperelasticity dominates, cracks can move faster than all elastic waves.
EXPLANATION IN ENGLISH:Materials like glass and rubber defy the common Hooke's Law of Elasticity.Under large strains,the cracks acquire high velocities due to the available abundant energy.This phenomenon is also viable when a rubber bursts.
do leave your responses....
ITS DAMN COOLL..
ReplyDeleteI AM LOOKING FORWARD FOR MORE OF SUCH INTRESTING FACTS
keep d gud work on
ReplyDeletemust visit for science society i believe
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