क्या है गुरुत्व का विलोम (प्रति -गुरुत्व )?एंटी -ग्रेविटी ?क्या है पदार्थ का विलोम (प्रति -पदार्थ )?एंटी -मैटर ?
जब एक इलेक्ट्रॉन एक प्रोटोन के गिर्द घूमने लगता है तब हमें एक एटम हाइड्रोजन (साधारण पदार्थ )का मिलता है।
अब यदि एक प्रति -इलेक्ट्रॉन एक प्रति -प्रोटोन के गिर्द घूमने लगे तो हमें एक एक एटम प्रति -हाइड्रोजन (एंटी मैटर )का प्राप्त हो जाएगा।
प्रकृति में जोड़ों का अस्तित्व है। हरेक कण के संगत एक प्रति कण भी है। इलेक्ट्रॉन है तो इसका विलोम प्रति -इलेक्ट्रॉन भी है। प्रोटोन है तो इसका विलोम प्रति -प्रोटोन भी है। न्यूट्रॉन के संगत प्रति -न्यूट्रॉन भी है।
गाड पार्टिकल के संगत एंटी -गॉड पार्टिकल भी होगा।
प्रति -पदार्थ मिरर इमेज है पदार्थ का।
जिसमें द्रव्य भार (mass )है वह पदार्थ है। इस प्रकार इलेक्ट्रॉन ,प्रोटोन आदि पदार्थ के कण हैं। पदार्थ का एक बुनियादी गुण हैं गुरुत्व यानी अपने आसपास के पदार्थ को आकर्षित करना ,उससे आकर्षित भी होना। एक गुरुत्व बल क्षेत्र (gravitational field )पैदा हो जाता है पदार्थ के गिर्द यह शेष सभी पिंडो पर आकर्षण बल डालता है। यही गुरुत्व है जो हमें पृथ्वी से जोड़े हुए है। पृथ्वी के वायुमंडल को थामे हुए है।
प्रति -पदार्थ के गिर्द एक प्रति -गुरुत्व क्षेत्र पैदा हो जाएगा जो अपने गिर्द की हरेक चीज़ को विकर्षित करेगा ,उस पर repulsive force डालेगा।
लेकिन प्रति -गुरुत्व का अस्तित्व कौतुक और विज्ञान गल्प का विषय ज्यादा रहा है।अबूझ पहेली बना रहा है।
IT IS THE HOLY GRAIL OF SCIENCE .
अन्वेषण का विषय रहा है प्रति -गुरुत्व ,अप्राप्य रहा आया है विज्ञान के लिए।
योरोपीय नाभिकीय शोध केंद्र इसकी पड़ताल करना चाहता है। इसके अस्तित्व या नहींपन को बूझ लेना चाहता है अपने प्रयोगों द्वारा। इस एवज़ पहला लक्ष्य है प्रति -पदार्थ के चंद एटम प्राप्त करना। भंडारित किए रखना इन प्रति -पदार्थ के परमाणुओं को।
जैसा हम ऊपर संकेत दे चुके हैं प्रति -पदार्थ अपने गिर्द जो कुछ है उसे विकर्षित करेगा। दूर छिटकायेगा। प्रति -पदार्थ परमाणुओं के गिर्द एक प्रति -गुरुत्व क्षेत्र खड़ा हो जाएगा जो अपने आसपास के शेष पदार्थ पर विकर्षण बल डालेगा।
यूं समझ लीजिए पृथ्वी के गुरुत्व क्षेत्र के छोड़ देने पर प्रति -पदार्थ पृथ्वी के केंद्र की तरफ न गिरके इसके केंद्र से परे जाएगा। नीचे न आकर ऊपर की तरफ जाएगा।
क्या यूरोपीय नाभिकीय शोध केंद्र के विज्ञानी प्रति -हाइड्रोजन परमाणुओं की ऐसी रासलीला देख सकेंगे।
बेशक एक शक्तिशाली चुंबकीय फंदा इन परमाणुओं का उलझाने के लिए तैयार है। इनकी रासलीला दर्ज़ होनी है। देखना है यह एक शक्तिशाली चुंबकीय हाई -कमान का आदेश मानकर कितना स्थिर(अ -गतिज ) बने रहते हैं। मनमोहना बन पाते हैं या नहीं।
अल्फा नाम दिया गया था इस प्रयोग को जिसके तहत इन्हें १००० सेकिंडों तक गतिहीन बने रहना था।
इस शक्तिशाली चुंबकीय क्षेत्र में गुरुत्व के प्रभाव को बूझना आसान कम नहीं है। इसी कड़ी का दूसरा प्रयोग अल्फा -२ यह प्रयास करेगा।
देखना बाकी है शक्तिशाली चुंबकीय क्षेत्र को स्विच आफ करने के बाद हाइड्रोजन -एंटी -हाइड्रोजन ,सहोदर समान द्रव्य भार वाले ये पदार्थ तथा प्रति -पदार्थ के परमाणु किस प्रकार गिरते हैं। कौन नीचे की ओर आता है कौन ऊपर की राह लेता है।
पृथ्वी के गुरुत्व क्षेत्र में सभी चीज़ें मुक्त रूप छोड़ देने पर उसके केंद्र की ओर दौड़तीं हैं। क्या इस प्रयोग में भी ऐसा ही होगा ?या गुरुत्व को इसका विलोम चुनौती देगा ?
इंतज़ार कीजिये।
CERN scientists to look for antigravity
London: In what could be their most revolutionary project to date, CERN physicists are set to begin an experiment to determine if antigravity exists.
Researchers will use the unique ability of the European Organization for Nuclear Research (CERN) to produce and store antimatter to test an idea that has so far belonged entirely in the realms of science fiction.
According to some theories, antimatter may generate a gravitational field that repels anything around it rather than attracting it in the way that normal matter does.
If proven, such a discovery would revolutionise physics - and might have radical practical applications, ranging from aircraft that need scarcely any fuel to space drives that could reach other star systems, 'The Sunday Times' reported.
"Antimatter is an enigma," said professor Jeffrey Hangst, a lead investigator on the team building the Alpha-2 experiment at CERN which will investigate antimatter's properties.
"We know that it is like the mirror image of matter, with many of its key properties reversed. What we want to find out is whether that includes its gravitational properties.
"Put simply, if we put antimatter into a gravitational field like that of the Earth, does it fall upwards or downwards? If it falls upwards, repelled by the Earth, then we would have discovered something very new and exciting," he was quoted by the paper as saying.
At CERN, Hangst and his colleagues have created a magnetic trap, where atoms of antihydrogen can be held almost stationary in a powerful magnetic field.
ALPHA was the first experiment to trap atoms of antihydrogen - neutral antimatter atoms held in place with a strong magnetic field for up to 1000 seconds.
The problem is that this field is so powerful that scientists cannot measure the effect of gravity.
ALPHA was the first experiment to trap atoms of antihydrogen - neutral antimatter atoms held in place with a strong magnetic field for up to 1000 seconds.
The problem is that this field is so powerful that scientists cannot measure the effect of gravity.
Current theoretical arguments predict that hydrogen and antihydrogen atoms have the same mass and should interact with gravity in the same way. If an atom is released, it should experience a downward force whether it's made of matter or antimatter.
"Our apparatus cannot even show us if antimatter falls up or down, so we are building something much more sensitive," said Hangst.
The CERN team plans to trap up to 100 antihydrogen atoms in a magnetic field - and then gently turn it off.
"Our apparatus cannot even show us if antimatter falls up or down, so we are building something much more sensitive," said Hangst.
The CERN team plans to trap up to 100 antihydrogen atoms in a magnetic field - and then gently turn it off.
The experiment will be done in a vacuum so the antiatoms will move under gravity alone. If they go up, then physicists would have found antigravity.
"In the unlikely event that antimatter falls upwards, we would have to revise our view of the way the universe works," said Joel Fajans, a member ALPHA at the University of California, Berkeley.
The ALPHA Collaboration is a group of physicists from about 11 universities who collaborate to try to trap neutral antimatter.
"In the unlikely event that antimatter falls upwards, we would have to revise our view of the way the universe works," said Joel Fajans, a member ALPHA at the University of California, Berkeley.
The ALPHA Collaboration is a group of physicists from about 11 universities who collaborate to try to trap neutral antimatter.
Gravity, you undoubtedly remember, is the attractive force between objects. It holds you to the planet and keeps the planet orbiting around the sun. As you might imagine, the idea of reducing, canceling or protecting against this effect of gravity is highly appealing.
Antigravity technology would revolutionize space exploration and energy production. It would slash the energy demands of travel and transportation. First, however, we'd just have to drastically alter our understanding of physics and figure out how to counter this powerful force.
As such, antigravity technology remains both the Holy Grail and a red flag. There's been no shortage of hoaxes, conspiracy theories and credibility-straining reports regarding its research.
Antigravity, involves lessening the effects of gravitational pull on an object, and the science just isn't there yet.
Anti-gravity is the idea of creating a place or object that is free from the force of gravity. It does not refer to the lack of weight under gravity experienced in free fall or orbit, or to balancing the force of gravity with some other force, such as electromagnetism or aerodynamic lift. Anti-gravity is a recurring concept in science fiction, particularly in the context of spacecraft propulsion. An early example is the gravity blocking substance "Cavorite" in H. G. Wells' The First Men in the Moon.
Does antigravity technology exist?
As advantageous as antigravity would be (and as cool as it sounds), it doesn't exist yet. Scientists still have not developed a proven technology that actually counters the effects of gravity on an object, although there is much mystery and myth associated with gravity and zero gravity research.
If such a technology were to exist in the future, it would force us to alter our understanding of physics and our experience of life. After all, gravity -- the most powerful force in the universe -- is what attracts objects to other objects. Gravity holds us to Earth's surface and keeps Earth in orbit around the sun. But ever since the dawn of science fiction, authors have filled sci-fi books and movie screens with objects or creatures that could fly free of the force of gravity. If their fantasy worlds were to become reality, the possibilities could be endless. Transportation would accommodate pretty much anyone's needs. Suddenly, the world would get a whole lot smaller, metaphorically speaking. Want to go somewhere? Just go! And who needs roads? Just hover away in your antigravity "car" (however that might look!), defying Einstein and Isaac Newton. Need to ship something across a room or across a continent? Do it with ease -- you could ship a literal ton of stuff as easily as you could a proverbial 5-pound sack: Mass is no longer an issue in an antigravity future!
