This sunken bridge designed by Ro & AD Architects from the Netherlands, has in fact parted waters. The bridge is in the Netherlands and it is the most practical and fun way of accessing the stunning 17th century fortress.
Britain could join forces with China to get the first person on Mars within the next 30 years
David Willetts was speaking as he announced that Britain could join forces with China to get the first person on Mars within the next 30 years. He said that following discussions with Chinese counterparts during his relationship-building trip to the country with David Cameron, they would first establish a base on the Moon, then travel to Mars.
Sorry for not doing a lot of activity recently.. I have foster kittens (9) I am dealing with, playing WoW (my gawd why?), and the shittiest time of year is upon us (dad died on Christmas) …. Don’t hate.
Jewelled Indian Swords Hilts
Photo #1 & #2: Khanda Sword Hilt
- Dated: late 17th/early 18th century
- Culture: Indian, Mughal
- Measurements: 9¾ inch (24.8cm) long
Made in parts, the surfaces of the hilt are extremely elegantly enamelled with a lively design of animals and floral motifs in a wide range of colours. The underside of the quillon, finial and outside of the handguard have diamond inset floral sprays on red or green enamelled ground while the lower mount with beautifully modelled elephant heads supporting the quillons.
Photo #3: Tulwar Sword Hilt
- Dated: late 18th/early 19th century
- Culture: Indian, Varanasi also known as Benares
- Measurements: 7¾ inch (19.6cm) long
Of typical form with upper suspension loop, the ground of green enamel has pink floral highlights set with a series of diamonds in gold mounts forming rosettes and floral sprays. The hand guard features a makara head while the finial have agate eyes with original similarly decorated chape.
Photo #4 & #5: Khanda Sword Hilt
- Dated: 18th century
- Culture: Indian, Mughal
- Measurements: 4¾ inch (12cm) long
Made in parts, the surfaces of the hilt and mounts are elegantly enamelled with floral vine and birds in a variety of colours, the underside of the quillon, finial and exterior of the handguard feature diamond inset floral sprays on enamelled ground while.
Source: Copyright © 2013 Christie’s
A Guide to the Center of the Milky Way
The middle of our galaxy makes for a stunning desktop background – but what, exactly, is going on in this image?
This composite image is an oldie, but it’s a goodie. It was released back in 2009 in celebration of the International Year of Astronomy. At the time, it was the most detailed and most colorful image of the center of our galaxy ever assembled, a combination of near-infrared, infrared and X-ray images acquired by the Hubble Space Telescope, Spitzer Space Telescope and Chandra X-ray Observatory, respectively. You can explore in great detail in the high-res version featured here.
I bring it to your attention now because, for as many times as I’ve seen this image, I’ve never seen it annotated. There’s obviously a lot going on in this image, and beautiful though it may be, it would be helpful to know where one might find, say, the black hole that it presumably contains.
The above image, which I recently happened upon in a backdated NASA APOD post, serves as a helpful guide to the star fields, star clusters, gaseous filaments, supernova remnants and the energetic surroundings of the black hole thought to exist at the heart of the Milky Way (that would be the location labelled “Sagittarius A,” where a supermassive black hole four-million times as massive as the Sun resides).
Reblog this if you think that the internet is not dangerous at all.
Hello, i’m doing an essay for my italian class titled “Social Networks & Internet: how do they affect our lives?” and i thought it would be great to do a survey asking both the “internet people” and people who don’t use the computer whether they think surfing the Net is actually dangerous or not.
Please, i don’t need millions of notes, but if i can reach a significant number, my argument will be more detailed. Thank you!
The hot test generator in action. Image: J.Mannhart/MPG.de
Through a process known as thermionic conversion, heat energy — such as light from the sun or heat from burned fossil fuels — can be converted into electricity with very high efficiency. Because of its promise, researchers have been trying for more than half a century to develop a practical thermionic generator, with little luck. That luck may soon change, thanks to a new design — dubbed a thermoelectronic generator — described in AIP Publishing’s Journal of Renewable and Sustainable Energy(JRSE).
Thermionic generators use the temperature difference between a hot and a cold metallic plate to create electricity. “Electrons are evaporated or kicked out by light from the hot plate, then driven to the cold plate, where they condense,” explained experimental solid-state physicist Jochen Mannhart of the Max Planck Institute for Solid State Research in Stuttgart, Germany, the lead author of the JRSE paper. The resulting charge difference between the two plates yields a voltage that, in turn, drives an electric current, “without moving mechanical parts,” he said.
Previous models of thermionic generators have proven ineffectual because of what is known as the “space-charge problem,” in which the negative charges of the cloud of electrons leaving the hot plate repel other electrons from leaving it too, effectively killing the current. Mannhart, along with his former students Stefan Meir and Cyril Stephanos, and colleague Theodore Geballe of Stanford University, circumvented this problem using an electric field to pull the charge cloud away from the hot plate, which allowed electrons to fly to the cold plate.
"Practical thermionic generators have reached efficiencies of about 10 percent. The theoretical predictions for our thermoelectronic generators reach about 40 percent, although this is theory only," noted Mannhart. "We would be much surprised if there was a commercial application in the marketplace within the next five years, but if companies that are hungry for power recognize the potential of the generators, the development might be faster."