Varahamihira is the Brihat-Samhita

Brihat – Samhita

Another important contribution of Varahamihira is the Brihat-Samhita. It covers wide ranging subjects of human interest, including astrology, planetary movements, eclipses, rainfall, clouds, architecture, growth of crops, manufacture of perfume, matrimony, domestic relations, gems, pearls, and rituals. The volume expounds on gemstone evaluation criterion found in the Garuda Purana, and elaborates on the sacred Nine Pearls from the same text. It contains 106 chapters and is known as the “great compilation”.

On Astrology

He was also an astrologer. He wrote on all the three main branches of Jyotisha astrology:

  • Brihat Jataka – is considered as one of the five main treatises on Hindu astrology on horoscopy.
  • Laghu Jataka – also known as ‘Swalpa Jataka’
  • Samasa Samhita – also known as ‘Lagu Samhita’ or ‘Swalpa Samhita’
  • Brihat Yogayatra – also known as ‘Mahayatra’ or ‘Yakshaswamedhiya yatra’
  • Yoga Yatra – also known as ‘Swalpa yatra’
  • Tikkani Yatra
  • Brihat Vivaha Patal
  • Lagu Vivaha Patal – also known as ‘Swalpa Vivaha Patal’
  • Lagna Varahi
  • Kutuhala Manjari
  • Daivajna Vallabha (apocryphal)

His son Prithuyasas also contributed in the Hindu astrology; his book Hora Sara is a famous book on horoscopy. Khana (also named Lilavati elsewhere) the medieval Bengali poetess astrologer is believed to be the daughter-in-law of Varahamihir.

Influences

The Romaka Siddhanta (“Doctrine of the Romans”) and the varahawere two works of Western origin which influenced Varahamihira’s thought, though this view is controversial as there is much evidence to suggest that it was actually Vedic thought indigenous to India which first influenced Western astrologers and subsequently came back to India reformulated. Number of his writings share similarities with with the earlier texts like Vedanga Jyotisha .

A comment in the Brihat-Samhita by Varahamihira says: “The Greeks, though Barbarians, must be honored since they have shown tremendous interest in our science…..” (“mleccha hi yavanah tesu samyak shastram kdamsthitam/ rsivat te ‘p i pujyante kim punar daivavid dvijah” (Brihat-Samhita 2.15)).

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Research of Cell Radiation Dr.Devra Davis

if anyone would be receptive to the idea that cell phone radiation might play a role in cancer, it would be Dr. Devra Davis. The epidemiologist and toxicologist is an expert in environmental health,  and she’s made a career out of the idea that cancer often has more to do with what’s happening to us than what’s going on inside our genes. Her 2007 book The Secret History of the War on cancer showed that some of the best medical minds in the U.S. played down the environmental factors behind cancer—from cigarette smoke to chemical exposure—far too long, in part because of deception and delay from industry.

But when a colleague raised the possibility that cell phones could be connected to brain cancer, Davis wasn’t receptive. “I couldn’t believe it and I didn’t want to,” says Davis. “These were attractive devices. Cell phones were like cars—you couldn’t imagine life without them.” But as she began to look seriously into the field, Davis began to have doubts that cell phones were harmless. She found evidence of studies, some decades old, showing that the radio-frequency radiation used by cell phones could indeed have biological effects–enough to damage DNA and potentially contribute to brain tumors. She found that other countries—like France and Israel—had already acted, discouraging the use of cell phones by children and even putting warning signs on handsets. She found evidence of  increases in certain kinds of brain tumors among unusually young patients who were heavy users of cell phones. And, just as she saw with tobacco and lung cancer, Davis discovered that the wireless industry—often with the help of governments—had fought independent scientists who studied cell phones, and helped produced questionable science that effectively clouded the issue. “This is about the most important and unrecognized public health issues of our time,” says Davis.”We could avert a global catastrophe if we act.”

Every year mobile industries 500 cr. set sell in world market , mostly mobile company hide radiation report are hide it’s big issued to health, it’s create to brain tumor dr. Devra Davis decide her research.

India launches first indigenous space shuttle, RLV-TD from Sriharikota

isro_gps

India launched its maiden indigenous winged Reusable Launch Vehicle, RLV from Sriharikota spaceport in Andhra Pradesh today.

The RLV Technology Demonstration (RLV-TD), that is ultimately aimed at putting satellites into orbit around earth and then re-enter atmosphere, was carried up on a solid rocket motor.

The nine-metre long rocket weighs 11 tonnes. Very similar in its looks to the US space shuttle, the double delta-winged RLV-TD being experimented is a scale model which is almost 6 times smaller than the final version.

The 6.5 m long aeroplane like structure weighs 1.75 tonnes and was hoisted into the atmosphere on the special rocket booster. After launching from the Sriharikota spaceport, it would be glided back onto a virtual runway in the Bay of Bengal.

The vehicle would re-enter the atmosphere after reaching a height of over 70 km.

Re-usable technology aims to help reduce the cost of launching objects into space by 10 times. It costs about $ 20,000 to send a kilogram in space currently.

Indian Space Research Organization or ISRO plans to test two more such prototypes before the final version which will be about six times larger at around 40 metres and will take off around 2030.

After the test flight was declared successful, Prime Minister Narendra Modi congratulated scientists at ISRO and tweeted: “Launch of India’s first indigenous space shuttle RLV-TD is the result of the industrious efforts of our scientists. Congrats to them.”

No other country is currently operationally flying a winged spacecraft into space – the US retired its space shuttles in 2011 and the Russians flew theirs only once in 1989.

The mission is known as the hypersonic flight experiment and is expected to last about 10 minutes.

In a race to master re-usable technology for space shuttles, the RLV  the likes of SpaceX’s Falcon 9 and Blue Origin’s New Shephard rocket – both the companies have already partially tested re-usable space shuttles.

Explaining the importance of the experimental RLV, Indian Space Research Organisation, ISRO Chairman Kiran Kumar said it is essentially an attempt by India to bring down the cost of making infrastructure in space.

 

दिल्ली में दौड़ी पहली ड्राइवरलेस मेट्रोः सफर में लगेगा कम वक्त, ऐसे बचेगी बिजली

मंगलवार को पहली बार ड्राइवरलेस मेट्रो ट्रेन का दिल्ली में ट्रायल रन किया गया। दिल्ली मेट्रो रेल कॉरपोरेशन (DMRC) के मुकुंदपुर डिपो से मजलिस पार्क मेट्रो स्टेशन के बीच यह ट्रायल हुआ। वेंकैया नायडू और अरविंद केजरीवाल ने हरी झंडी दिखाकर इस आधे किमी के रन की शुरुआत की। साल के अाखिरी तक ड्राइवरलेस मेट्रो चलाने की प्लानिंग है। 10 फीसदी ज्यादा होगी स्पीड…
– डीएमआरसी के मुताबिक ड्राइवरलेस मेट्रो ट्रेन की स्पीड मौजूदा ट्रेन से 10 फीसदी ज्यादा होगी।
– डीएमआरसी के मुताबिक मेट्रो के मौजूदा बेड़े में 14 ड्राइवरलेस ट्रेन शामिल की गई हैं।
– ट्रायल के बाद हर महीने चार नई ट्रेने रहित मेट्रो ट्रेनों को बेड़े में शामिल किया जाएगा।
– ड्राइवरलेस मेट्रो कोरिया मूल की रोटेम नामक कंपनी ने तैयार किया है।
– गुजरात के मधुरा सीपोर्ट से देश में लाने के बाद इन ट्रेनों को दिल्ली के मुकुंदपुर मेट्रो डिपो में असेंबल किया गया था।
– फिलहाल दिल्ली मेट्रो ने साउथ कोरिया से 20 ड्राइवरलेस मेट्रो ट्रेनें मंगाई हैं।
– ट्रेन में ड्राइवर केबिन हटाने के बाद 60 पैसेंजर्स के लिए एक्स्ट्रा स्पेस होगा।
– नए मेट्रो कोच से एनर्जी कंजम्पशन 20% कम होगा।
आगे क्या है प्लानिंग?
– डीएमआरसी के अफसरों ने बताया कि मुकुंदपुर डिपो और मजलिस पार्क मेट्रो स्टेशन में हुए सक्सेसफुल ट्रायल रन के बाद जुलाई से बॉटनिकल गार्डन से कालकाजी मेट्रो स्टेशन तक इन ड्राइवरलेस मेट्रो ट्रेनों का ट्रायल रन किया जाएगा।
– डीएमआरसी ने मेट्रो के तीसरे रूट पर ड्राइवरलेस मेट्रो ट्रेन चलाने का फैसला लिया है। खास बात यह है कि यह नई मेट्रो कई नए फीचर्स से लेस।
– थर्ड फेज में जुलाई 2016 में आप इस ड्राइवरलेस मेट्रो में सफर कर सकेंगे।
– शुरुआत में ट्रेन मेट्रो की तीसरे फेज की मेट्रो लाइन पर चलेगी।
– तीसरा फेस मजलिस पार्क- शिव विहार और जनकपुरी वेस्ट- बॉटेनिकल गार्डन से कालकाजी तक है।
– तीसरे फेज में चलने वाली सभी मेट्रो 6 कोचेज की होगी।
इन शहरों में चलती है ड्राइवरलेस मेट्रो
रोम, मीलान, पेरिस, वैंकूवर, लीमा, दुबई और अंकारा में ड्राइवरलेस मेट्रो चलती है।
डीएमआरसी के सीनियर ऑफिसर्स के मुताबिक ट्रायल कामयाब होने के बावजूद ट्रेन को चलाए जाने के अगले एक साल तक ट्रेनों में कैब ऑपरेटर मौजूद रहेंगे।
– ये ऑपरेटर ट्रेनों को कम्युनिकेशन बेस्ड ट्रेन कंट्रोल तकनीक के आधार पर चलाएंगे। इस दौरान सबकुछ ठीक रहने पर इन्हें ट्रेनों से हटा दिया जाएगा।

ISRO’s Reusable Launch Vehicle to take off next week

The first technology demonstrator (TD) launch of the Indian Space Research Organisation’s Reusable Launch Vehicle (RLV), or the spaceplane in popular parlance, will take place on May 23 at 9.30 a.m. from the Satish Dhawan Space Centre (SDSC), Sriharikota, according to ISRO officials.

Visually, the RLV-TD is a rocket-aircraft combination measuring about 17 m, whose first stage is a solid propellant booster rocket and the second stage is a 6.5 m long aircraft-like winged structure sitting atop the rocket.

A misnomer

However, the popular perception of the technology as a marriage between rocket and aircraft is a misnomer.

In RLV-TD that is awaiting launch at SHAR, the first stage, weighing about 9 tonnes, is merely the Satellite Launch Vehicle (SLV-3) flown in the 1980s.

The vehicle will take off like a rocket and the RLV will be taken to a height of 70 km and where the booster will release the vehicle to carry out its manoeuvres.

A conventional launch vehicle (LV), says Dr. Sivan, spends the lowest time of its flight in the atmosphere, whereas the RLV system spends all the time in the atmosphere. Also, while an LV experiences limited flight regime of say Mach 0 to Mach 2 or so, the RLV experiences a much wider range of flight regimes.

Hence the technology of an RLV is much more complex basically arising from the design of the control and guidance systems, he pointed out.

In HEX1, the winged RLV is otherwise a dummy with no powered flight of its own. At the end of the HEX1 mission, the aircraft will land in sea. However, the ultimate objective of the RLV programme of ISRO is to enable the vehicle traverse a very wide range of flight regimes from Mach 0 to Mach 25 based on air-breathing propulsion for achieving two-stage-to-orbit (TSTO) launch capability.

The integrated test system (booster plus the RLV-TD) is already at the SDSC (SDSC), Sriharikota. Prior to being moved to Sriharikota, the RLV subsystem underwent acoustic tests at the National Aerospace Laboratories of the CSIR (CSIR-NAL) and the booster went as a separate subsystem directly from VSSC. At SDSC the two were mated together.

Dr. A.S. Kiran Kumar, ISRO Chairman, called the first test launch HEX1 “a very preliminary step” and stressed that “we have to go a long way” before it could be called a re-usable launch system. “But these are very essential steps we have to take,” he said.

Scientists at ISRO believe that they could reduce the cost of launching things into space by as much as 10 times if reusable technology succeeds, bringing it down to USD 2,000 per kg.

The making of the Indian space shuttle or RLV-TD has taken 5 years and the government has invested Rs 95 crore in the project. This flight will test the capability of the vehicle to survive a re-entry at speeds higher than that of sound so it is called a hyper sonic experiment. The 6.5-m-long ‘aeroplane’-like spacecraft will weigh 1.75 tons and will be hoisted into the atmosphere on a special rocket booster.

 

World’s biggest plane Antonov An-225 Mriya leaves Perth

THE world’s biggest aircraft has lifted off from Perth Airport just before 6am, heading northeast over Bullsbrook before banking towards the coast.

The giant cargo plane took off on a north-facing runway, heading up over Guildford and Bullsbrook, before banking north and heading towards Europe over the Indian Ocean, crossing the coast around Yanchep.

Hundreds of spectators again flocked to the airport to watch the giant Ukrainian plane take off, but it left well before sunrise, making the spectacle far less visible than the Sunday morning landing.

The Antonov An-225 attracted about 20,000 people when it touched down on Sunday, delivering a 117-tonne turbine from the Czech Republic for a WA mining resources client in the South West.

WHAT IS THE ANTONOV AN-225 MRIYA?

Designed and developed in the 1980s and originally earmarked to carry the “Buran”, a Soviet space shuttle, the AN-225 is the only one of its kind in the world.

It has been used as a commercial freighter to assist with worldwide ultra-heavy cargoes and humanitarian relief work for the past three decades.

The aircraft, which has a crew of six and 42 tyres, is 84 metres long, has a wingspan of 88.4 metres and a height of 18.1 metres. Empty it weighs 285 tonnes and has a maximum takeoff weight of 640 tonnes.

To put this into context, the AN-225 has twice the wing area of a Boeing 747 and can hold the equivalent of ten British battle tanks.