background preloader

Earth's Timeline

Earth's Timeline
Related:  Timeline tools and resources.

In Charted Waters - Evolution of the World Map as it was Explored Maps are among the most accessible assets we can use accurately, whether it’s an old print or the newest mobile app. Still, it took centuries for people to truly understand the geography of the world. Here, we show how our knowledge has grown and developed over time… Scroll to begin the journey Atlantic Ocean Mediterranean Sea Black Sea Britain Thailand Cambodia Sumatra Java China NorthAmerica Africa Indian Ocean Uzbekistan Azores CapeVerdeIslands Cape ofGood Hope The Bahamas Cuba Haiti DominicanRepublic VirginIslands EastAfrica Trinidad SouthAmerica Madagascar Philippines PapuaNewGuinea PacificOcean Japan Siberia Antarctica CapeYork Tasmania NewZealand Australia Carthaginians reach the Atlantic Oceanfor the first time. Herodotus prefaces his Histories with a description of the lands known to him. Britain appears forthe first time on a map. Western traders reach Thailand, Cambodia, Sumatra and Java, as well as China. Approximate date for the Viking discoveries of America for which they had different names.

Geologic Time Machine - Stages of Earth&#039;s evolution <div class="center"><h2><span style="color:red">This page requires JavaScript.</span><br />Please enable scripting for your browser and re-load the web page.</h2></div> Geologic and Biological Timeline of the Earth The Time Machine shows the reshaping of the continents through a portion of the geologic timeline of the Earth with examples of the biological inhabitants of each period. Great volcanic eruptions marked the transition from the Paleozoic Era into the Mesozoic Era. The five major mass extinctions events occurred during the terminal Ordovician (443 mya), Late Devonian (374 mya), terminal Permian called the "Great Dying" (251 mya), terminal Triassic (201), and the terminal Cretaceous (65 mya), also called the K/T event. References Christopher R. © Copyright 2014 - Antonio Zamora

Nature Blows My Mind! 10 videos of the stunning, otherwordly flights of starlings One of the most spectacular scenes one can witness at dusk during a winter evening is the aerial ballet performed by starlings gathering together to roost for the night. The starlings of Ot Moor: This video not only shows incredible footage of the beautifully strange swarms, but explains the location and behavior of these particular starlings as well. While many people call it swarming, the movement of the starlings is actually called a murmuration. And murmurations have mathematical foundations. The Telegraph reports, "Impenetrable as the flock’s movements might seem to the human eye, the underlying maths is comparatively straightforward. The reason for such close proximity and rapid movements has to do with survival -- while moving in this vast flock, each bird is that much safer from raptors like peregrines, merlins and sparrowhawks that attempt to nab dinner from the edges of the murmuration. This video is just, wow. 100,000 starlings [Just a murmuration] from Mark Rigler on Vimeo.

Les abeilles se sont déjà éteintes, en même temps que les dinosaures Les dinosaures ne sont pas les seuls à s’être éteints il y a près de 65 millions d’années: les abeilles aussi —enfin, presque. Selon une étude de l’Université du New Hampshire (UNH) publiée le 24 octobre, elles auraient quasiment disparu à la fin de la période crétacée. Comme nous l’apprend le site de l’université, «les études précédentes suggéraient une extinction généralisée des plantes à fleurs durant cette période, et on a longtemps supposé que les abeilles, qui dépendaient de ces plantes, avaient connu le même destin. Malheureusement, contrairement aux dinosaures, il existe peu de traces de fossiles d’abeilles». publicité Ce qui rendait la confirmation d’une telle extinction difficile. «Les données indiquaient qu’un événement majeur s’était produit au même moment pour quatre groupes différents d’abeilles. Selon l’auteure, cette découverte pourrait permettre d’éclairer l’actuelle disparition des abeilles: De nombreuses hypothèses ont tenté d’expliquer ce phénomène.

Timeline of Art History - Skip to primary content Skip to secondary content Having trouble viewing this page? Click here for a printer-friendly version. FacebookTwitterPinterestTumblrShare Email This Page AddToAny Geologic and Biological Timeline of the Earth Astronomical and geological evidence indicates that the Universe is approximately 13,700 million years old, and our solar system is about 4,567 million years old. Earth's Moon formed 4,450 million years ago, just 50 million years after the Earth's formation. Because the composition of the rocks retrieved from the Moon by the Apollo missions is very similar to rocks from the Earth, it is thought that the Moon formed as a result of a collision between the young Earth and a Mars-sized body, sometimes called Theia, which accreted at a Lagrangian point 60° ahead or behind the Earth. A cataclysmic meteorite bombardment (the Late Heavy Bombardment) of the Moon and the Earth 3,900 million years ago is thought to have been caused by impacts of planetesimals which were originally beyond the Earth, but whose orbits were destabilized by the migration of Jupiter and Saturn during the formation of the solar system. Simplified model of the formation of the Moon (my = millions of years) Glossary

Liège at Night To paraphrase an old expression: “all roads lead to Liège.” Or at least you could get that impression from this astronaut photograph. The brightly lit core of the Liège urban area appears to lie at the center of a network of roadways—traceable by continuous orange lighting extending out into the rural and relatively dark Belgian countryside. For a sense of scale, the distance from image left to right is approximately 70 kilometers (43 miles). The image was taken using the European Space Agency’s Nodding mechanism on the International Space Station (ISS), also known as the NightPod. Liège is the third most populous metro area in Belgium, after Brussels and Antwerp. Astronaut photograph ISS034-E-5935 was acquired on December 8, 2012, with a Nikon D3S digital camera using a 180 millimeter lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center. Instrument(s): ISS - Digital Camera

Cycle de Calvin Un article de Wikipédia, l'encyclopédie libre. Pour les articles homonymes, voir Calvin. Le cycle de Calvin (aussi connu comme le cycle de Calvin-Benson) est une série de réactions biochimiques prenant place dans le stroma des chloroplastes des organismes photosynthétiques. Il a été découvert par Melvin Calvin et Andy Benson à l’université de Californie à Berkeley. Durant la photosynthèse, l’énergie de la lumière a été convertie en énergie chimique conservée dans l’ATP et le NADPH. Le cycle de Calvin, indépendant de la lumière, utilise l’énergie de ces transporteurs à courte vie pour transformer le dioxyde de carbone en composés organiques qui peuvent être utilisés par l’organisme. La somme totale des réactions du cycle de Calvin est : 6 CO2 + 24 NADPH + 18 ATP → C6H12O6 + 6 H2O + 24 NADP+ + 18 ADP + 18 Pi Réactions dans le cycle de Calvin[modifier | modifier le code] Cycle de Calvin, vue des trois étapes : fixation du dioxyde de carbone, réduction et régénération du ribulose.

Holocaust Timeline Jump to: 1938 1939 1940 1941 1942 1943 1944 1945 1933 January 30, 1933 - Adolf Hitler is appointed Chancellor of Germany a nation with a Jewish population of 566,000. February 22, 1933 - 40,000 SA and SS men are sworn in as auxiliary police. February 27, 1933 - Nazis burn Reichstag building to create crisis atmosphere. February 28, 1933 - Emergency powers granted to Hitler as a result of the Reichstag fire. Terms of use: Private home/school non-commercial, non-Internet re-usage only is allowed of any text, graphics, photos, audio clips, other electronic files or materials from The History Place.

The Power of Community: How Cuba Survived Peak Oil Documentary -- Welcome!