Ho la vache!!!

Des études ont prouvé que la vache avait une intelligence équivalente au chien...

Pensez y quand vous mangez du "boeuf"....

Merci p'tite soeur....

Comments

[LLéa]

:)


 


Merci Pimpim,


 


Oh! la vache! Quelle belle vie ! :)


 


Bisous, et merci pour tout les sujets. Et commentaires .... :)

[Ferlinpimpim]

Bisous Léa.

[neo]

alors ,


as-tu regardé le documentaire ?

[Ferlinpimpim]

Oui, pas en totalité ( heure de la sieste et j'ai plusieurs fois fermé les yeux )... Non pas que c'était chiant, au contraire, très beau, et très enrichissant...  Je regarderais ça plus
éveillé ce w-e. Magnifiques images.

[pascale]

elle ronronne...!


vive les végétariens...

[Ferlinpimpim]

Oui, vivement un changement profond dans tout ça...

[Lio]

Personnellement je ne crois pas cette affirmation.


Pour avoir plus de 60 Vaches à la maison, et pour avoir eu aussi des cochons, je dirai que le porc est bien plus intelligent que la vache. Déjà parce qu'il est propre et que la vache fait ses
besoins n'importe où; alors que le cochon, lui les fera toujours sur un cion de box.


La vache n'a pas la notion de propreté du porc et rien que sur ce domaine, ça prouve un manque ...


 


Cdt

[Ferlinpimpim]

Possible, j'ai lu ça y a quelques mois. Après la proprété et l'intelligence, je ne sais pas...

[neo]

http://earthsky.org/tonight/orions-two-colorful-supergiant-stars?utm_source=EarthSky+News&utm_campaign=fcccb97c76-EarthSky_News&utm_medium=email&utm_term=0_c643945d79-fcccb97c76-393511181


Blue-white Rigel is at the foot of Orion













Tonight for February 5, 2014


Courtesy U.S. Naval Observatory





Yesterday, we talked about Orion’s bright star Betelgeuse. Today … its bright star Rigel.


Before you can find Rigel, you need to know how to find Orion. The three sparkling blue-white stars of Orion’s Belt are easy to spot. As viewed from the Northern Hemisphere, this compact
line of stars can be found in the south to southeast sky at nightfall. It is more toward the northern sky for observers in the Southern Hemisphere. No matter where you are, if you look
outside in the evening now, chances are the pattern you’ll pick out will be Orion!



Let Jupiter guide you to Orion and its bright stars in February 2014.



See Mercury in the sunset direction on February 5, 2014.


Not too late. Order your 2014 EarthSky Lunar Calendar today!


A planisphere is virtually indispensable for beginning stargazers. Order your EarthSky Planisphere today!


You might note that Orion’s two brightest stars – Betelgeuse and Rigel – lodge
at an equal distance above and below Orion’s Belt. Rigel is shown on today’s chart. Look back at yesterday’s chart to see Betelgeuse.


Look again at Rigel. Because it lies some 775 light-years away, Rigel must be
intrinsically extraordinarily luminous to shine so brightly in our sky. If this star were as close as our sun, it would outshine the sun by 40,000 times!


Although both Rigel and Betelgeuse are extremely luminous supergiant suns, the stark color contrast between these two stars makes Betelgeuse and Rigel readily distinguishable. (Try
binoculars, if you can’t distinguish color with the unaided
eye.) Betelgeuse has a reddish hue, while Rigel sparkles blue-white. By the way, a star’s color is very revealing of its surface temperature. Red stars are cool (2,000 to 3,500 Kelvin) and in the autumn of their years, while blue and blue-white stars are hot
(over 10,000 K) and young, in the heyday of youth.


Astronomers believe both red and blue supergiant stars blow up into supernova explosions, though at one time it was thought that only red supergiants did so. Look for Rigel, Orion’s blue
supergiant star, at the foot of Orion tonight!




In February 2014, the Orion stars Betelgeuse and Rigel line up, or nearly line up, with the dazzling planet Jupiter.



Let Jupiter guide you to Orion and its bright stars in February 2014. If you’re unfamiliar with the constellation Orion, in 2014 you can let the super brilliant planet
Jupiter help you. Jupiter is the brightest starlike object in the evening sky, and it’s near Orion now in the sky. In fact, the stars Betelgeuse and Rigel – brightest stars in Orion –
line up, or nearly so, with Jupiter on these February 2014 nights.




See Mercury in the sunset direction in early February 2014. The bow of the crescent moon points toward it at dusk and/or nightfall.



See Mercury in the sunset direction on February 5, 2014. The planet Mercury – innermost planet of the solar system – is up in the west after sunset on these February 2014
evenings. Many people never see Mercury because it stays near the sun in our sky. To catch it, the, look west and close to the sunset point on the horizon 60 to 75 minutes after sunset. Binoculars may be helpful. Because both the moon and Mercury reside near the
ecliptic – the pathway of the moon and planets – the “bow” of the waxing crescent moon will be
pointing in the general direction of Mercury.


Bottom line: This post describes how to locate Orion’s bright blue-white star Rigel. And it tells you how to find Orion using Jupiter on these February 2014 evenings. Plus … it’s not too
late to look for Mercury after sunset.


What is the safe distance between us and an exploding star?


Top tips for using ordinary binoculars for stargazing


Do stars shine in color?



EarthSky






MORE FROM EARTH SKY



Waxing gibbous moon near the star Aldebaran on
February 8  




Waxing moon in Aries on February 6, Taurus on
February 7  




Moon and Mercury in sunset direction on January
31  

[neo]

http://earthsky.org/space/how-astronomers-learn-the-masses-of-double-stars?utm_source=EarthSky+News&utm_campaign=fcccb97c76-EarthSky_News&utm_medium=email&utm_term=0_c643945d79-fcccb97c76-393511181


 


By Bruce McClure in
Tonight | Human World | Space on Feb 03, 2014








How astronomers learn the masses of double stars








Image credit: NASA/SAO/CXC











For astronomers, a binary or double star is a gift from the heavens. Astronomers observe these stars to find telltale clues to each star’s mass.


















A simulated example of a binary star system, whose component stars orbit around a common center of mass (red cross). In this depiction, the two stars have similar mass. In the case of the
Sirius binary system, Sirius A has about twice the mass of Sirius B. Image via Wikipedia





An artist’s impression of how Sirius A and B might appear to an interstellar visitor. Image credit: NASA, ESA and G.
Bacon



Fortunately for astronomers, there are lots of binaries – two stars revolving around a common center of mass – populating the starry sky. A binary system is literally a gift
from the heavens because it readily reveals to astronomers the masses of its two component stars. To find the masses of stars in double systems, astronomers observe the mean distance between
the two stars, often expressing it in a distance unit of astronomical units – the average distance between
the Earth and sun. And they observe the time period it takes for the two stars to revolve around one another, often expressed in Earth-years. With those two observations, they are able to
calculate the stars’ masses, which they typically do in terms of
solar masses*, that is, X times the mass of our sun.


Perhaps half of the stars that we see at night are binaries. Take Sirius, for example, the brightest star of the
nighttime sky. It looks like a single star to the unaided eye, but it’s actually a binary star. According to the star aficionado Jim Kaler, the two stars orbit each other in a period of 50.1 Earth-years at an average distance of 19.8 astronomical units. The brighter of the two is called Sirius A, while its fainter companion is known as Sirius B (The Pup).


So how would astronomers find the masses of Sirius A and B? They would simply plug in the observed distance separating the two component stars – and the orbital period – into the easy-to-use
magical formula below.



Mass = a3/p2



In this formula, a is the distance between the stars in astronomical units, and p is the orbital period in Earth-years. So consider Sirius A and B with a separation of 19.8
astronomical units, an orbital period of 50.1 years.



Mass = a3/p2
Mass = 19.8 x 19.8 x 19.8/50.1 x 50.1
Mass = 7762.392/2510.01
Mass = 3.0925741 solar masses



The above answer gives the mass of both stars added together in solar masses. At this point, we know that the whole binary system equals about 3 solar masses, or is about
1,000,000 times more massive than our planet Earth. But we don’t yet know the masses of the individual stars Sirius A and Sirius B.


To find out the mass of each individual star, astronomers need to know the mean distance of each star from the barycenter – common center of mass. To learn this, once again they rely
on their observations.


It turns out that Sirius B, the less massive star, is about twice as far from the barycenter (center of mass) than is Sirius A. That means Sirius B has about half the mass of Sirius A.


Thus, if you know the whole system is about three solar masses, you can deduce that the mass of Sirius A is about two solar masses, while Sirius B pretty much equals our sun in mass.


Nifty, yes?


*One solar mass is 1.9891 × 1030 kilograms about 333,000 times the mass of our planet Earth.




The trajectory of Sirius B (The Pup) as seen from Earth. Image credit: Wikimedia



Bottom line: For astronomers, a binary or double star is a gift from the heavens. Astronomers observe these stars to find telltale clues to each star’s mass.

[neo]

http://earthsky.org/human-world/venus-brightest-greatest-brilliancy-greatest-illuminated-extent?utm_source=EarthSky+News&utm_campaign=fcccb97c76-EarthSky_News&utm_medium=email&utm_term=0_c643945d79-fcccb97c76-393511181


 


By Bruce McClure and Deborah Byrd in
Blogs | Human World | Space on Feb 03, 2014









See Venus at its brightest!








Phase of Venus when brightest











What’s that very bright star or planet in the east before sunrise now? It’s the planet Venus, now near its time of greatest brilliancy.
















Many are asking: what is that brilliant object shining in the east before sunrise now? It’s the beautiful “morning star,” really the planet Venus. It’s the second planet outward from our sun
and always the third-brightest object in Earth’s sky, after the sun and moon. Venus is so bright that it sometimes casts a shadow on dark, moonless night. Venus is always bright … but it’s
particularly noticeable now because it shines at its greatest brightness as the “morning star” around mid-February. It is near what astronomers call its greatest illuminated extent
or greatest brilliancy, which peaks on February 15, 2014. Follow the links below to learn more about Venus at its brightest.



When can I see Venus?



How bright is Venus?



Why is Venus at its brightest now?




Venus on December 3, 2013 as seen by EarthSky Facebook friend Brodin Alain. Thank you, Brodin!



When can I see Venus? You can’t miss Venus if you look outside after the sun goes down. Look in the same direction as the sunset. Venus will be shining there –
looming there, actually – a bright and somewhat eerie-looking object.


Venus always looks a bit eerie around its time of greatest brilliancy. At these times, many people report Venus as a UFO. Plus, there are multiple stories in military history about people
mistaking Venus for an enemy spy balloon, and trying to shoot it down.


You’ll know better. It’s just Venus at its brightest!


Venus has been in the morning sky since January 11, 2014, but its time of greatest brilliancy means its reign in the morning sky has barely begun. Why? Because greatest brilliancy for Venus
in the morning sky always comes shortly (about 36 days) after the planet passes (more or less) between us and the sun. But Venus presence in the morning sky lasts for about 292 days, so
bright beauty will remain a fixture of the morning sky until October 25, 2014




Venus easily outshines any nearby stars. Here is Venus in November 2013, when it was near the star Nunki, in the constellation Sagittarius. Photo taken November 19, 2013 by EarthSky Facebook friend Rajib Maji in India. Thank you, Rajib!



How bright is Venus? Venus easily ranks as the brightest starlike object in all the heavens.


This planet ranges in magnitude from -3.9 to -4.9. A negative magnitude means an exceptionally bright celestial object. Our sun, for example, has a magnitude of -26!


Or contrast the brightness of Venus to the very brightest stars. Consider the well-known star Betelgeuse in the constellation Orion, which shines at a magnitude of 0.45. At its faintest, Venus shines nearly 40 times brighter than Betelgeuse. At its brightest, Venus is
about 100 times brighter.


Or consider the sky’s brightest star, Sirius, whose magnitude is -1.44. At its faintest, Venus is
nearly 10 times brighter than Sirius. At its brightest, Venus beam nearly 25 times brighter.


Venus is bright partly because it’s nearby, and partly because its surface is covered with highly reflective clouds.




Venus waxes and wanes in phase, and the size of its disk increases and shrinks, depending on where Earth and Venus are in orbit. As Venus comes closer to Earth, its phase shrinks but its
disk size enlarges. Image via Statis Kalyvis



Why is Venus at its brightest now? Consider that Venus is a planet, like Earth, in orbit around the sun. Its orbit is inside ours; Venus is closer to the sun.


That’s why this dazzling world displays the full range of phases, much like our moon. You need a telescope to observe the phases of Venus, and they are most fun to watch around the time that
Venus passes between us and the sun. Around then, the lighted half or day side of Venus is facing mostly away from us. Venus appears in a crescent phase.


Believe it or not, Venus doesn’t exhibit its greatest brilliancy at the full phase. In order to see Venus as full, that planet must be far across the solar system from us, and, at such times,
the size of its disk is small. So Venus appears fainter then.


Likewise, Venus doesn’t shine at greatest brilliancy when it’s closest to Earth. Then the planet is either an extremely thin crescent as seen from Earth, or it’s not visible at all because
its day side faces entirely away from us and it’s in the sun’s glare.

[neo]

SUBLIME DOC :


http://youtu.be/P-eOysoXqQU

[Ferlinpimpim]

J'ai mis dans la boite, merci.

[Marasine]

Hey ! ça me rappelle quand j'étais gamine, quand on allait en visite chez mes grands parents à la ferme. A peine sortie de la voiture je courrai à l'écurie carresser les veaux et quand je me
pointai à la cuisine pour enfin aller embrasser la famille, j'avais les mains brunes et je puai la beuse ! Les engueulées de ma mère... je te dis pas, surtout que c'était en général  un
dimanche et dans les années 60 elle m'habillait en conséquence.  Mes grands parents, eux rigolaient, ils savaient que pour moi, la ferme c'était le paradis.

[Ferlinpimpim]

Nous sommes nombreux à avoir vécu ça, mais je pense que les jeunes n'ont plus cette chance...

[Loïc]

Résultats, 10 ans de végétarisme et 6 mois de végétalisme et en bout de ligne la conscience un petit peu plus tranquille :-) Elle est pas belle la vie!!

[Ferlinpimpim]

Je n'en suis pas encore là, mais j'y arrive...