Common But Deadly Plants

Gardening is a rewarding and enjoyable hobby, but if you're not careful, it can also be a deadly activity. Here are ten common plants that can be extremely poisonous when handled or consumed. Nature-lovers, beware!

1. Oleander (Nerium Oleander)

It may look like an attractive flowering shrub, but don't be fooled! Oleander is one of the most poisonous of all commonly grown garden plants, and though it's especially toxic to children it is often planted in school yards. It is a hearty bush and grows on many different continents, and with beautiful, fragrant blossoms, it is tempting to include it in any garden... just don't even think about touching it or tasting the leaves or stems.

Our Planet from Top to Bottom

The Transit of Venus 06 June 2012

06 जून 2012 को अद्भुत खगोलीय घटना घटने जा रही है । इस दिन सूर्य बिम्ब के ऊपर से शुक्र का पारगमन होगा अर्थात् शुक्र सूर्यबिम्ब के ऊपर से गुजरता हुआ दिखाई देगा । इस घटना को ‘भेदयुति’ (Conjunction) भी कहा जाता है । इससे पूर्व यह घटना 08 जून 2004 को हुई थी । 2012 के पश्चात् यह घटना 11 दिसम्बर 2117 अर्थात् 105.5 वर्ष पश्चात् होगी । यह अद्भुत खगोलीय घटना एक शताब्दी में दो बार ही होती है ।
ग्रहों की कक्षाएँ एक दूसरे को जिन बिन्दुओं पर काटती हैं, उन बिन्दुओं पर यदि ग्रहों का योग होता हो, तब पारगमन और ग्रहण जैसी घटनाएँ दृष्टिगोचर होती हैं । यद्यपि ये घटनाएँ तकनीकी दृष्टि से लगभग एक जैसी हैं, परन्तु द्रष्टा (अर्थात् देखने वाला Observer) के आधार पर इनमें भिन्नता होती है । यदि एक ग्रह के द्वारा दूसरे ग्रह का बिम्ब (Disc) पूर्णतः या आंशिक रुप से ढँक लिया जाता है, तब यह घटना ‘ग्रहण’ (Eclipse) कहलाती है और यदि एक ग्रह का बिम्ब तुलनात्मक रुप से इतना बड़ा हो कि दूसरे ग्रह के बिम्ब से वह आंशिक या पूर्णतः ढँका न जा सके, तो वह दूसरे ग्रह के बिम्ब के ऊपर से एक बिन्दु के रुप में चलता हुआ दिखाई देता है । यह घटना ‘पारगमन’ (Transit) कहलाती है । सूर्य बिम्ब के ऊपर से चन्द्रबिम्ब का गुजरना ‘ग्रहण’ कहलाता है, क्योंकि उस दौरान चन्द्रबिम्ब सूर्यबिम्ब के एक बड़े हिस्से को ढँकता है । दूसरी ओर, सूर्य बिम्ब के ऊपर से शुक्र या बुध का गुजरना ‘पारगमन’ कहलाता है, क्योंकि उस दौरान शुक्रबिम्ब या बुधबिम्ब सूर्यबिम्ब के एक बड़े हिस्से को ढँकता नहीं है, वरन् बिन्दु के समान गुजरता हुआ दिखाई देता है ।
पृथ्वी के सन्दर्भ में सूर्यबिम्ब के ऊपर से पारगमन की घटना अन्तःकक्षा वाले ग्रह (Inferior or Inner Planets) की ही सम्भव है । बुध एवं शुक्र अन्तःकक्षा वाले ग्रह हैं । इसलिए इनका ही पारगमन होता है ।


Know more about transit  अधिक जानने के लिए यहाँ क्लिक करें

Attractive Planets Pictures

The world is usually distinct as the entirety of all that exist counting every one substance and force, the planets, star, galaxies, and the inside of intergalactic breathing space. The expression planet is antique with fasten to history, knowledge, legends, and belief. The planets be originally see by a lot of near the beginning civilization as heavenly, or as representative of the gods. As systematic knowledge superior, human awareness of the planets distorted, incorporate a figure of dissimilar substance. This description has been together praise and criticize, and leftovers doubtful by some scientists as it exclude many substance of terrestrial mass base on where or what they course. Here are some attractive planets pictures. Take a look.

Light fantastic

Light fantastic: The 'supermoon' arrives tonight as our cosmic sidekick appears in its biggest and brightest form

The biggest and brightest full moon of the year is lighting up the sky tonight as our celestial neighbour passes closer to Earth than usual.

Tides are likely to be higher as a result of the supermoon but fears of a spike in crime or an increase in crazy behaviour have been dismissed as pure folklore.

Experts say the Moon will appear up to 14 per cent bigger and 30 per cent brighter as it passes 221,802 miles from earth, around 15,300 miles closer than average. Its distance from Earth varies because it follows an elliptical orbit rather than a circular one.

The phenomenon is known as a perigee full moon but astronomers warn the 'relatively uncommon' celestial event may not amount to much.

Glowing guide: A runner makes his way along a trail in front of the once-a-year 'super Moon' at Papago Park in Phoenix, Arizona Northern Florida: The moon peaks out behind Century Tower at the University of Florida in Gainesville

SUPPER MOON

May 4,2012 Supermoon 2012: Biggest full moon of the year

Photo of 2011 "Supermoon" captured in Puerto Rico (Carlos Gotay Martinez/Flickr)
(CNET) If you missed it last year the super perigee moon is back for an encore performance.

 

On Saturday the moon will be up to 14 percent bigger and 30 percent brighter than the other full moons of 2012according to NASA.

 

That's because it will reach perigeeits closest point to Earth in its elliptical orbitat 11:34 p.m. ET and become full just a minute later.

 

Super perigee moons happen about once a year on average but the moon of March 192011was nearly 250 miles closer than this week's moon prompting wild calamitous speculations.

 

When the moon is on the perigee side of its orbitit's about 31000 miles closer to Earth than the apogee side. The only effects expected are slightly higher tides and many beautiful photos.

 

The annual Eta Aquarid meteor shower which is associated with Halley's comet will coincide with the coming perigee moon. Its light will likely dim all but the brightest meteors.

 

It should be a gorgeous display if the weather cooperates. The moon will appear largest and most dazzling when it's near the horizon as seen in this photo gallery showing last year's super moon.

 

So get your tripod outfigure out the best lunar exposure and snap away!

 

This story and Slideshow reported by CNET.

 

8 Photos
Saturday's super moon seen 'round the world (photos)
View the Full Gallery »

http://www.cbsnews.com/8301-205_162-57428066/supermoon-2012-biggest-full-moon-of-the-year/

Astrolabe – An Ancient Computer From The Past

They say it’s the oldest computer ever. Well, I wouldn’t actually say computer, but there may be some similarities. I’m talking about the astrolabe. It’s basically an elaborate inclinometer, historically used by astronomers, navigators, and astrologers. It was mainly used to locate and predict the positions of the sun, the moon, planets, and stars. Visually it’s a golden and lovely instrument.

They work in a way where you  you input information and then you receive output, just like a computer, right? They are about 6 inch or more in diameter, and in the middle you can see how the sky is drawn with 20 stars. Finding the time of day or night, could be solved with the astrolabe as well as being able to find out what time the sun would rise and set.

It’s no wonder they couldn’t do without this magnificent instrument back in the acient days. It was used in Classical Antiquity, through the Islamic Golden Age, the European Middle Ages and Renaissance for all these purposes, so you can say it was pretty popular. So this was the first computer, but what about the first calculators.

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