Gianni Sarcone: művészi optikai illúziók. Egy olasz képzőművész és ismeretterjesztő szerző többek közt optikai illúziók készítésével foglalkozik.
Az alábbiakban az ő alkotásaiból mutatunk be néhányat. A szakemberek számos elméletet dolgoztak ki arra, hogyan hozza létre szemünk és agyunk közösen a mozgás illúzióját egyes állóképek esetében, de a pontos idegi mechanizmus még nem ismert. Gianni Sarcone tervező, képzőművész és ismeretterjesztő szerző sokat tanulmányozta az optikai illúziókkal kapcsolatos kutatásokat, és az ezekből szerzett tudást használja munkái elkészítéséhez. Ha a következő képen a középen lévő kerek alakzatra összpontosítunk, akkor a „szirmok” vibrálni látszanak. Ha a fejünket kicsit előre-hátra mozgatjuk, akkor úgy tűnik, mintha lüktetnének a rozetta színes mezői.
Loneliness Illustrated So Beautifully You Will Need To Tell Someone. Európa legszebb épületei éjjel. Red Bull Illume Photo Contest 2013 - In Focus. The top 250 finalists have just been selected in the 3rd edition of the Red Bull Illume Image Quest photo competition.
The contest invites photographers to submit images of the world of action and adventure sports in one of 10 categories, including Energy, Illumination, Sequence, and Experimental (where digital manipulation is allowed). This year the competition received more than 28,000 entries by 6,417 photographers from 124 countries. At the end of August, the top 50 finalists will be invited to attend a ceremony in Hong Kong, where the winners will be unveiled.
The organizers at Red Bull were kind enough to allow me to select some of my favorites from among their current finalists and share them here with you. [38 photos] Use j/k keys or ←/→ to navigate Choose: Winners of the 2013 National Geographic Traveler Photo Contest - In Focus. The winning entries in the 25th annual National Geographic Traveler Photo Contest have just been announced.
First prize winner Wagner Araujo will receive a 10-day Galapagos expedition for two for his image of competitors in the Brazilian Aquathlon. Collected here are the ten 2013 prize winning photos, plus the Viewers' Choice selection. Photos and captions by the photographers. Also, be sure to see Part 1 and Part 2, earlier on In Focus. [11 photos] Use j/k keys or ←/→ to navigate Choose: Second Place Winner: Thunderstorm at False Kiva. First Place Winner: Brazil Aquathlon.
Merit Winner: Sakura. 2013 National Geographic Traveler Photo Contest - In Focus. The 25th annual National Geographic Traveler Photo Contest is under way, and entries will be accepted for another six weeks, until June 30, 2013.
First prize winner will receive a 10-day Galapagos expedition for two. National Geographic was once more kind enough to allow me to share some of the early entries with you here, gathered from four categories: Travel Portraits, Outdoor Scenes, Sense of Place, and Spontaneous Moments. Photos and captions by the photographers. [42 photos] Use j/k keys or ←/→ to navigate Choose: A fennec fox walks against the wind in Morocco. A raging sea dwarfs Seaham Lighthouse in County Durham in England, with 100 ft waves after a cold front moved down from the north bringing freezing temperatures to the North of England. A group of 12-14 hyenas were chasing a herd of 7-8 elephants. The late morning fall air was just cool enough that the sap weeping from the trees would solidify in mid flight... creating beautiful marbles of amber falling to the ground. National Geographic Traveler Photo Contest 2013 (Part 2) - In Focus. The time to enter the 25th annual National Geographic Traveler Photo Contest is running short -- entries will be accepted for another few days, until June 30, 2013.
The first prize winner will receive a 10-day Galapagos expedition for two. National Geographic was once more kind enough to allow me to share some of the later entries with you here, gathered from four categories: Travel Portraits, Outdoor Scenes, Sense of Place, and Spontaneous Moments. Photos and captions by the photographers. Also, be sure to see Part 1, earlier on In Focus. [46 photos] Use j/k keys or ←/→ to navigate Choose: Young monks begin their service very early in life in their studies in the monastery. Returning from a snorkeling excursion during a trip to the Great Barrier Reef, wind speed dropped to zero and the ocean became a mirror.
At the foot of the active Bromo Volcano, on the Island of Java lies the Hindu Temple Pura Luhur Poten which is often immersed in a soft mist at dusk. Fun With Chemistry: The Amazing Pharaoh’s Serpent Reaction. By Marshall Brain | May 18, 2010 The reaction you can see below is called Pharaoh’s serpent, and it is both bizarre and amazing to watch: So how does this work?
The starting chemical is mercury thiocyanate (also known as mercuric sulphocyanate – Hg(SCN)2). Which sounds really bad, because it contains the poison mercury combined with a cyanate (i.e. cyanide). For more info see on mercury and cyanide see: - Are you poisoning yourself with fish? - How does potassium cyanide work? The fumes from the reaction contain mercury, and so does the solid left behind. Today you can buy fireworks that look a little like Pharaoh’s Serpent, but are not quite that dramatic.