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Apa
  • Apa este singurul element din natură care poate lua mai multe forme: solidă, gazoasă şi lichidă;
  • Apa este considerată aliment şi este mai importantă chiar decât mâncarea! Un om poate supravieţui fără să mănânce aproximativ o lună, dar fără apă doar o săptămână;
  • Peştii de apă sărată beau apă, iar cei de apă dulce nu;
  • Corpul unei meduze este format în proporţie de 98% din apă;
  • Cercetătorii au demonstrat că apa fierbinte îngheaţă mult mai repede decât apa rece;
  • Alcoolul, ceaiul şi sucurile nu sunt surse ideale de apă pentru că au, suplimentar, un efect diuretic asupra corpului;
  • Cu cât este mai rece apa pe care o bem în timpul meselor, cu atât mai încet va fi procesul digestiv;
  • După studiile de la Universitatea din Wasington, un pahar cu apă calmează foamea la aproape 100% dintre persoanele aflate la dietă;
  • Studii ştiinţifice arată că, dacă bei între opt şi zece pahare cu apă pe zi, poţi calma semnificativ durerile de spate şi pe cele ale articulaţiilor;
  • Consumul insuficient de apă este cauza numărul unu a oboselii din timpul zilei;
  • scădere de doar 2% a apei din organism poate duce temporar la pierderea memoriei;
  • Scurtarea timpului de duş cu un minut poate economisi cca. 1653 de litri de apă pe lună;
  • Într-o viaţă de circa 70 de ani, un om consumă în medie 115 tone de apă, echivalentul a peste 2 vagoane cisternă;
  • Sunetul se propagă mult mai repede prin apă decât prin aer;
  • La om senzaţia de sete se instalează încă din momentul în care începe să se piardă 1% apă din organism;
  • În banană se regăseşte un procent de 75% apă, pe când într-o roşie cantitatea de apă este de aproximativ 95%;
  • Apa trebuie consumată la o temperatură de circa 5 grade celsius pentru a putea fi benefică organismului uman;
  • Cea mai pură apă se găseşte în Finlanda;
  • Cea mai mare parte din apa potabilă se află în gheţari;
  • Apa îmbuteliată este una dintre cele mai mari afaceri existente în domeniul alimentar;
  • 85% de boli din toată lumea se transmit prin intermediul apei;
  • Dacă un om pierde 2% de apă din masa corpului, el suferă de sete. În cazul în care procentul de apă pierdut va creşte până la 10, apar halucinaţiile. Dacă omul pierde 12% de apă nu se poate restabili fără ajutorul medicului. La pierderea a 20% omul moare;
  • Cea mai scumpă apă din lume este vândută în Los Angeles. Lichidul preţios, cu un gust şi valoarea pH-ului echilibrate, este ambalat în sticle cu pietre “Swarovski”. Preţul acestei ape este de 90 $ pentru un litru.

251 229 replies on “Curiozități”

Круглозвенные цепи — это не просто элемент механики, а настоящая находка для бизнеса! Они широко используются в различных отраслях: от сельского хозяйства до строительства, обеспечивая надежную передачу усилия и долговечность — подобрать подшипник по размеру.

What New Glenn will do
In some ways, New Glenn has already made its mark on the launch industry. Blue Origin has for years pitched the rocket to compete with both SpaceX and United Launch Alliance — a joint venture of Boeing and Lockheed Martin that buys engines from Blue Origin — for lucrative military launch contracts.
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The US Space Force selected Blue Origin, ULA and SpaceX in June to compete for $5.6 billion worth of Pentagon contracts for national security missions slated to launch over the next four years.
Blue Origin also has deals with several commercial companies to launch satellites. The contracts include plans to help deploy Amazon’s Kuiper internet satellites and a recently inked deal with AST SpaceMobile to help launch the Midland, Texas-based company’s space-based cellular broadband network.

New Glenn could also be instrumental in building Blue Origin’s planned space station, called Orbital Reef. Blue Origin and it commercial partners, including Sierra Space and Boeing, among others, hope the station will one day provide a new destination for astronauts as the International Space Station is phased out of service.
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New Glenn vs. other powerful rockets
New Glenn packs significant power. Dubbed a “heavy-lift” vehicle, its capabilities lie between SpaceX’s Falcon 9 rocket and the more powerful Falcon Heavy launch vehicle.

SpaceX’s workhorse Falcon 9, for example, can haul up to 22.8 metric tons (50,265 pounds) to space. While New Glenn is capable of carrying about double that mass, it may also be roughly the same price as a Falcon 9: reportedly around $60 million to $70 million per launch.

“I think in order to compete with Falcon 9, you have to go head-to-head or better on price,” said Caleb Henry, the director of research at Quilty Space, which provides data and analysis about the space sector.

The question, however, is whether Blue Origin will be able to sustain a competitive price point, Henry added.

Still, one feature that makes New Glenn stand out is its large payload fairing, or nose cone. The component protects the cargo bay and is a whopping 23 feet (7 meters) wide — nearly 6 feet (2 meters) larger than that of SpaceX’s Falcon 9 or Falcon Heavy.

Henry said Blue Origin likely opted to outfit New Glenn with such a large fairing in order to help fulfill Bezos’ vision of the future.

What’s on board this flight
Blue Origin had planned to launch a pair of Mars-bound satellites on behalf of NASA for the first flight of New Glenn.

But delays with the rocket’s development prompted the space agency to change course, moving that flight to this spring at the earliest. So for this inaugural flight, Blue Origin opted to instead fly a “demonstrator” that will test technology needed for the company’s proposed Blue Ring spacecraft — which will aim to serve as a sort of in-space rideshare vehicle, dragging satellites deeper into space when needed.
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The demonstrator on this New Glenn flight will remain aboard the rocket for the entire six-hour flight, Blue Origin said, and it will validate “communications capabilities from orbit to ground” as well as “test its in-space telemetry, tracking and command hardware, and ground-based radiometric tracking.”

The Blue Ring Pathfinder demonstrator is part of a deal Blue Origin inked with the US Department of Defense’s Defense Innovation Unit.
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Why Blue Origin wants to reuse rockets
Similar to SpaceX, Blue Origin is aiming to recover and refly its first-stage rocket boosters in a bid to make launches less expensive.

“Reusability is integral to radically reducing cost-per-launch,” the company said in a recent news release, using the same oft-repeated sentiment that SpaceX has touted since it began landing rocket boosters in 2015.
Bezos, however, has acknowledged the importance of reusing rocket parts since he founded the company in 2000 — two years before Musk established SpaceX. And the company has already developed its suborbital New Shepard tourism rocket to be reusable.
“It’s not a copy cat game,” Henry said. “Blue Origin has been pursuing reusable vehicles since before reusable vehicles were cool. Now it’s much more of a mainstream idea (because of SpaceX). The difference is that it’s taken Blue Origin so much longer to get to orbit.”

If successful, returning the New Glenn rocket booster for a safe landing will be a stunning feat. After expending most of its fuel to propel the rocket’s upper stage to space, the first-stage booster will need to make a clean separation. The booster must then maneuver with pinpoint guidance and reignite its engines with precision timing to avoid crashing into the ocean or the Jacklyn recovery platform.

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