Daisugi – Ancient Japanese sustainable forestry technique allows for lumber production without cutting down trees

Originally invented by the people of the region of Kitayama, the method was used to solve the problem of shortage of seedlings. Daisugi is a Japanese forestry technique where specially planted cedar trees are pruned heavily. like giant bonsai, to produce “shoots” that become perfectly uniform, straight and completely knot free lumber. The shoots are carefully and gently pruned by hand every two years leaving only the top boughs, allowing them to grow straight. Harvesting takes 20 years and old “tree stock” can grow up to a hundred shoots at a time.

Photo: Wrath of Gnon

Onekotan Island

Onekotan is an uninhabited volcanic island located near the northern end of the Kuril Islands along the Pacific “Ring of Fire.” Onekotan consists of two stratovolcanos connected by a relatively flat isthmus.
Krenitsyn is the prominent caldera at the southern end of the island. The mountain rises from a depth of from 600 to 900 meters, and contains a deep central caldera lake with a diameter of 7 kilometers, called Tao-Rusyr Caldera. The central peak of this “island within the island” is actually the highest point on Onekotan Island
Nemo is the peak to the north. It has two nested subsidiary calderas, with the cone of Nemo Peak rising in the southwest end of the youngest caldera and a crescent-shaped crater lake, named Lake Chernoye, partially filling the northeast part.

NASA Goddard Space Flight Center from Greenbelt, MD, USA / Public domain

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The Sculptural Rock Formations Of White Desert

White Desert National Park in Egypt, is the site of large white chalk rock formations, created through erosion by occasional sandstorm in the area. Some of them have developed nicknames over the years. The most famous are called “chicken and mushroom”, “camel” and “whale”, among other things. Arguably, the best way to experience the wonders of the White Desert is to camp overnight because these sculptural formations look most impressive at sunrise or sunset.

By Christine Schultz (Link

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3 of the Best Hocking Hills State Park Caves

Hocking Hills State Park is a state park in Ohio, United States. Within the park are over 25 miles of hiking trails, rock formations, waterfalls, and recess caves.
In the southernmost reaches of Hocking Hills is Ash Cave, the largest, most impressive recess cave in the state. The horseshoe-shaped cave measures 700 feet from end to end, 100 feet deep from the rear cave wall to its front edge with the rim rising 90 feet high. The cave was named after the huge pile of ashes found under the shelter by early settlers.

Ash cave J. Todd Poling/CC BY 2.0

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Qianchun – One of China’s most complex interchanges

One of China’s most complex interchanges. It’s called Qianchun Interchange and is located in the mountainous province of Guizhou, China. Construction began in 2009, but the massive road knot was only completed in 2017. It consists of 18 different ramps in eight directions on five different levels. The highest level is 37m above ground and this incredibly complex infrastructure has been labelled a nightmare for motorists trying to find their way around. People on social media pointed out that even the GPS systems would be confused by the five different layers of road.  However, officials claim that the directions and exits on the interchange are clearly marked and that even if you make mistakes,  it’s easy to turn around.

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The splendid beauty of Krupaj spring

Maja Stosic / CC BY-SA

Krupaj spring is a water spring in Eastern Serbia in the foothill of Beljanic mountain. Surrounded by a forest of its own, with tree branches and vines hovering over its surface, stands the Krupaj springs. The water, blue and green in colour, with varying nuances, can’t help itself but hypnotize the beholder. The deep, cold and turquoise is often specked with fallen leaves. Apart from the enchanting sight of the fount, beneath its surface the Krupaj springs hides an even more fascinating story. According to the stories of scuba divers who dove to 123 meters depth, once you dive into the lake you enter a maze of underwater canals.
Even the most experienced divers would be lost trying to dive through the “Stomach”, the “Slide”, the “Small Room”, the “6 Meters”, the “Big Room”, the “Ram’s Head” of this half-flooded cave, without a rope to serve as their lifeline. They say  the last stop is the “Canal” after which there is nothing but a dark abyss. Also at 123 meters there is a partially flooded room, where in the depths of the underground, they found tunnels that lead to the surface.
info source

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Giant Honeybees Use ‘Shimmering’ Waves To Repel Predatory Wasps

Apis dorsata, the giant honey bee, is a honey bee of  South and Southeast Asia, found mainly in forested areas. Since their nests are fairly exposed and accessible to predators, built in exposed places far off the ground, these giant honeybees exhibit strong and aggressive defense strategies. A method that Apis dorsata utilizes against wasps is referred to as “shimmering” behavior or defense waving. Bees in the outer layer thrust their abdomens 90° in an upward direction and shake them in a synchronous way. This may be accompanied by stroking of the wings. The signal is transmitted to nearby workers that also adopt the posture, thus creating a visible — and audible — “ripple” effect across the face of the comb, in an almost identical manner to an audience wave at a crowded stadium. These wave-like patterns repel wasps that get too close to the nests of these bees and serve to confuse the wasp. In turn, the wasp cannot fixate on capturing one bee or getting food from the bees’ nest, so the wasp will seek to find easier prey and leave this nest alone.
info source: wikipedia

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Þrídrangaviti – An Isolated Lighthouse in Iceland

Perched a top one of 4 rock pillars sticking out of the sea off Westman, around six miles from Iceland’s mainland, Þrídrangaviti Lighthouse is known as one of the loneliest lighthouses in the world. The remote lighthouse was built in 1938. At that time the only way to get to the top was climbing. Builders had to kneel down and stand on their back because there where nowhere to get a grip.
Nowadays, the lighthouse is accessible by helicopter and even features a small helipad.

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Salt water pools in Siwa Oasis, Egypt

Siwa Oasis is one of Egypt’s most isolated settlements with about 33,000 people. A vast area of Palm trees in the middle of the desert. The combination of low annual rainfall and high rates of evaporation in the oasis results in lakes characterized by hyper-salinity. Lakes, which are both healing and an important source of revenue for the residents of the oasis. Siwis traditionally utilize this salt in building homes and shaping their tools and also lamps, believed to produce healing energy with the heat of the light source. People started to excavate the lakes to get the salt creating round pools .The salt lakes in Egypt is considered to have healing properties for sinuses, skin and eyes, in addition to their relaxing experience.

Ahmed Emad Hamdy / CC BY-SA

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