понедельник, 3 декабря 2018 г.

Ouch that Stings! Image of the Week – December 3, 2018CIL:41021…


Ouch that Stings! Image of the Week – December 3, 2018


CIL:41021http://flagella.crbs.ucsd.edu/images/41021


Description: Tentacle of Portuguese Man o’ War, Physalia physalis imaged with a stereomicroscope at 30x. Notorious for its painful, powerful sting, the Portuguese Man o’ War has a gas filled floating chamber that supports the tentacles, which bear nematocytes (stinging cells). Shown are the pink batteries of stinging cells and a delicate muscular band responsible for the high contractibility of the tentacles. 2009 Olympus BioScapes Digital Imaging Competition®.


Authors: Alvaro Migotto and 2009 Olympus BioScapes Digital Imaging Competition®


Licensing: Attribution Non-Commercial No Derivatives: This image is licensed under a Creative Commons Attribution, Non-Commercial, No Derivatives License


Archive link


2018 December 3 Spiraling Supermassive Black Holes Video…


2018 December 3


Spiraling Supermassive Black Holes
Video Credit: NASA’s Goddard Space Flight Center; Music: In the Hall of the Mountain King by Edvard Grieg


Explanation: Do black holes glow when they collide? When merging, co-orbiting black holes are sure to emit a burst of unusual gravitational radiation, but will they emit light, well before that, if they are surrounded by gas? To help find out, astrophysicists created a sophisticated computer simulation. The simulation and featured resulting video accurately depicts two spiraling supermassive black holes, including the effects of Einstein’s general relativity on the surrounding gas and light. The video first shows the system from the top, and later from the side where unusual gravitational lens distortions are more prominent. Numerical results indicate that gravitational and magnetic forces should energize the gas to emit high-energy light from the ultraviolet to the X-ray. The emission of such light may enable humanity to detect and study supermassive black hole pairs well before they spiral together.


∞ Source: apod.nasa.gov/apod/ap181203.html


Amethyst | #Geology #GeologyPage #Mineral Locality: Dasoto,…


Amethyst | #Geology #GeologyPage #Mineral


Locality: Dasoto, Kato Nevrokopi basin, Dráma Prefecture, Macedonia Department, Greece


Size: 5.8 x 3.3 x 2.5 cm


Photo Copyright © Anton Watzl Minerals


Geology Page

www.geologypage.com

https://www.instagram.com/p/Bq5nu_VlPfg/?utm_source=ig_tumblr_share&igshid=tosvmhwugkom


Tourmaline | #Geology #GeologyPage #Mineral Locality: Mawi,…


Tourmaline | #Geology #GeologyPage #Mineral


Locality: Mawi, Laghman Province, Nuristan Province, Afghanistan


Size: 6 x 2.9 x 2.1 cm


Photo Copyright © Anton Watzl Minerals


Geology Page

www.geologypage.com

https://www.instagram.com/p/Bq5oD-JFbaG/?utm_source=ig_tumblr_share&igshid=c4m7v1m131id


K-Pg boundary, Alberta | #Geology #GeologyPage…


K-Pg boundary, Alberta | #Geology #GeologyPage #K_PgBoundary


Badlands near Drumheller, Alberta, where glacial and post-glacial erosion have exposed the K–Pg boundary


Photo Copyright © Glenlarson/Wikipedia


Geology Page

www.geologypage.com

https://www.instagram.com/p/Bq5o7HRFQA2/?utm_source=ig_tumblr_share&igshid=4c2679n4w2u6


HiPOD (2 December 2018): Dunes in the Shapes of Ts and Vs   –…


HiPOD (2 December 2018): Dunes in the Shapes of Ts and Vs


   – They also look like funnel shapes. (Alt: 317 km, less than 5 km across.)


NASA/JPL/University of Arizona


Fluorite | #Geology #GeologyPage #Mineral Locality: Blanchard…


Fluorite | #Geology #GeologyPage #Mineral


Locality: Blanchard Claims, Bingham, Socorro County, New Mexico, United States of America


Size: 6.5 × 4.2 × 2.5 cm

Largest Crystal: 1.90cm


Photo Copyright © Rockhunter /e-rocks.com


Geology Page

www.geologypage.com

https://www.instagram.com/p/Bq5j5ozlqNs/?utm_source=ig_tumblr_share&igshid=1kz9a2bdfylkp


Kasha-Katuwe Tent Rocks National Monument | #Geology…


Kasha-Katuwe Tent Rocks National Monument | #Geology #GeologyPage


Kasha-Katuwe Tent Rocks National Monument, located 40 miles southwest of Santa Fe, New Mexico (near Cochiti), is a Bureau of Land Management (BLM) managed site that was established as a U.S. National Monument by President Bill Clinton in January 2001 shortly before leaving office. Kasha-Katuwe means “white cliffs” in the Pueblo language Keresan.


Geology Page

www.geologypage.com

https://www.instagram.com/p/Bq5keUsFKnT/?utm_source=ig_tumblr_share&igshid=37ctaet9dmow


Amethyst Sceptre | #Geology #GeologyPage #Mineral Locality:…


Amethyst Sceptre | #Geology #GeologyPage #Mineral


Locality: Brandberg, Erongo Region, Namibia

Size: 7.9 x 2.4 x 2.1 cm


Photo Copyright © Anton Watzl Minerals


Geology Page

www.geologypage.com

https://www.instagram.com/p/Bq5ldBNljbV/?utm_source=ig_tumblr_share&igshid=81xrokpohm2d


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