SKU: 44648306771

Eos Wetenschap Special 2023 - Einstein Telescoop

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Eos Wetenschap Special 2023 - Einstein TelescoopEos special Einsteintelescoop: rimpelingen meten in de ruimtetijd Een driehoek met buizen van tien kilometer lengte, zon 250 meter onder de grond. Dat is in een notendop hoe de toekomstige Einsteintelescoop er gaat uitzien. Met behulp van dit huzarenstukje, genoemd naar de visionaire wetenschapper die het bestaan van zwaartekrachtgolven ruim honderd jaar geleden voorspelde, hopen wetenschappers tot voorbij de oerknal te kunnen kijken. Met

Eos-special Einsteintelescoop: rimpelingen meten in de ruimtetijd

Een driehoek met buizen van tien kilometer lengte, zo’n 250 meter onder de grond. Dat is in een notendop hoe de toekomstige Einsteintelescoop er gaat uitzien. Met behulp van dit huzarenstukje, genoemd naar de visionaire wetenschapper die het bestaan van zwaartekrachtgolven ruim honderd jaar geleden voorspelde, hopen wetenschappers tot voorbij de oerknal te kunnen kijken.

Met zwaartekrachtgolfdetectie kunnen we verder teruggaan in de tijd dan met lichttelescopen. De eerste zwaartekrachtgolven werden gemeten in 2015. Huidige detectoren als LIGO in de Verenigde Staten, Virgo in Italië en KAGRA in Japan botsen binnen afzienbare tijd op hun limieten. Hoewel de Einsteintelescoop aanzienlijk groter en gevoeliger wordt, werkt hij volgens precies hetzelfde principe als zijn voorgangers: interferometrie, of de interactie van twee lichtgolven met exact dezelfde golflengte.

In 2025 valt de beslissing of het observatorium op het drielandenpunt België-Duitsland-Nederland komt, dan wel de Duitse deelstaat Saksen of de oude mijnsite van Sos Enattos in Sardinië als uitvalsbasis krijgt. Niet alleen de geologie van de ondergrond is cruciaal, ook de financiering van dit big science-project en de connectiviteit van de regio bepalen waar de Einsteintelescoop uiteindelijk ingegraven wordt. Of we op een tweede CERN in onze achtertuin mogen hopen, valt af te wachten. Het drielandenpunt biedt met zijn ruisdempende toplaag gelegen op rots alvast een geschikte locatie.

Wordt de algemene relativiteitstheorie van Einstein met dit fonkelnieuwe observatorium omvergehaald? Mogen we hopen op astrofysische fenomenen die we nooit eerder waarnamen, zoals de eerste zaden van sterrenstelsels? Natuurkundigen Thomas Hertog en Nick Van Remortel durven hopen dat het niet bij dromen blijft: ‘Het lijkt ons realistisch dat we over dertig jaar overblijfselen van de oerknal hebben gemeten met zwaartekrachtgolven’. 

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SKU: 44648306771

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BradleyDoom
Waukegan, US
★★★★★ 4
Great book on yoga theory
Format: Paperback
A very good book on the eight arms of yoga. Would highly recommend to others interested in yoga or meditation.
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Reviewed in the United States on March 14, 2019
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GateKeeper
Massapequa, US
★★★★★ 5
This book could change your life!
Format: Paperback
Simply put, this book changed my life and sent my down a wonderful path. Every reader experiences the written word differently, but once you start living these practices, not just reading, an entirely new view begins to unfold.
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Reviewed in the United States on January 9, 2017
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Andrea
New York, US
★★★★★ 5
Great price
Format: Paperback
It was a really awesome book and the perfect size and price.
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Reviewed in the United States on December 21, 2020
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Al Stone
Dallas, US
★★★★★ 5
Merits the Five-Star Ratings
Format: Paperback
Barney “Scout” Mann and his wife “Frodo” host many prospective Pacific Crest Trail thru-hikers, at their home, and shuttle them to the trail to start their trek. Scout is a Triple Crowner having hiked the Pacific Crest, Continental Divide and Appalachian Trails and has been very active as a volunteer, serving as a board member and in various capacities for several trail organizations. This eminence translates into a great number of five-star reviews: yet, this account merits them. Journeys North is about the author’s PCT thru-hike in 2005. It predates “Wild” and the resultant explosion in the trail’s popularity. The book focuses on the Mann’s and several hikers, who move north, in their proximity. There is considerable background and detail given about these characters, which enhances the readers appreciation of their trip. This balances with sufficient description about the trail and the hike making Journeys North a captivating and unique read among trail narratives. In the final chapters, the trekkers are buffeted and challenged by early season blizzards. Forced out of the snowbound high mountains, Frodo, Scout and their group improvise a low land route to complete their walk. With numerous of characters, the bouncing around and referencing of prior information can be confusing to the reader. There’s some heartwarming tales. The author describes an anonymous benefactor who provides two out-of-funds youngsters a considerable amount of money allowing them to continue towards Canada. The reader doesn’t learn whether the pair completes their journey; but that was a truly generous act, Barney. Journeys North transcends the trail in its portrayal of the human condition and the adversity and challenges that we confront in life. The book validates the camaraderie and caring that develops among hikers and the positive effect the PCT can have on changing lives. Well done.
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Reviewed in the United States on November 8, 2020
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Kindle Customer
Natrona Heights, US
★★★★★ 5
A Vivid Account of Gallant Thru-hikers
Format: Kindle
This book a little confusing at first since he is telling the story of several hikers at once. So keeping them all straight takes some effort. The actual description of the hike, the challenges and all the people along the way does make for fascinating reading. I personally, have great respect for those who attempt this formidable hike. They truly deserve our respect. I don't think you could be disappointed reading this book.
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Reviewed in the United States on May 20, 2026

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