On the rebound, the acceleration varies. The jumper is accelerating up but as the bungy recoils, the jumper starts accelerating down again due to the pull of gravity. This does not mean that he's moving down, however, only that his velocity upwards is decreasing.

When the rope becomes taut, the force on the jumper is mainly his weight downwards, plus a bit of air resistance up. Therefore his speed is increasing nearly as much as it did when he leapt off the platform. So this is not the greatest acceleration of the jump.

A short a cappella tribute to experimentalists. It is sung while performing three simple experiments with household items: Mentos dropped in diet Coke, a tea bag emptied and burned, and a ping pong ball floating in the air stream of a hair dryer.

Australian Science week runs August 13-21. Check out scienceweek.gov.au for more details.

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Watch the next video in our series on Guardians of the Apocalypse: https://youtu.be/eHMdzWEU_c4

Estimates say that a vehicle-sized asteroid explodes in our atmosphere about once per year, often too high to make a noticeable impact.

But in 2013, a small meteor exploded just 20 miles above Chelyabinsk, Russia that sent over 1,200 people to the hospital.

Today, a team of experts from NASA’s Planetary Defense Coordination Office works diligently to find asteroids that travel near Earth’s orbit.

They’ve released a plan in order to prevent a large-scale asteroid impact, and part of this plan is the DART mission.

DART aims to travel to the asteroid Didymos in 2021 to demonstrate the tech that could be used to redirect an asteroid headed for Earth.

See the full article on NASA's plans to stop an asteroid headed for earth, here: https://www.freethink.com/show....s/guardians-of-the-a

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-NASA Will Use AR to Travel to Saturn in 2026: https://youtu.be/peNm2bgS7oM
-How NASA Will Feed the Farthest Journey in History: https://youtu.be/vTgnCaBVaj8

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65 million years ago, a large asteroid collided with Earth near present-day Chicxulub, Mexico. The impact was a climactic event that likely contributed to dinosaur extinction. Today, Earth remains vulnerable to asteroid collisions. In recent history, space rocks have landed in The United States, Russia, and elsewhere. In the event of a potential asteroid collision, NASA has developed several options for dealing with the threat. Researchers at NASA’s Center for Near Earth Object Studies and Jet Propulsion Laboratory have proposed using blunt force, weaponized deflection or a theoretical tool called a gravity tractor to deflect impact. In addition to developing contingency plans, NASA scientists are also searching the sky for future asteroid threats.

Sources:

Source article: https://www.vox.com/a/asteroid-day
Chicxulub impact information: https://www.jpl.nasa.gov/news/news.php?feature=8
NASA JPL: https://www.nasa.gov/asteroid-and-comet-watch
NASA asteroid tracking: https://www.jpl.nasa.gov/edu/n....ews/2017/4/18/how-na
NASA Center for Near Earth Object Studies: https://cneos.jpl.nasa.gov/
Congressional hearing on asteroids: https://www.c-span.org/video/?....311602-1/threats-ast

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On July 4, 1996, the Mars Pathfinder landed on Mars. Since then, NASA has had at least one robot studying the red planet, slowly uncovering its secrets.

Footage courtesy of NASA.

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Here are all the photos flying through interstellar space on Voyager's Golden Record. http://www.vox.com/2015/11/11/....9702090/voyager-gold

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Sources:
http://voyager.jpl.nasa.gov/spacecraft/scenes.html
http://www.amazon.com/Pale-Blu....e-Dot-Vision-Future/
http://www.amazon.com/Murmurs-....Earth-Carl-Sagan-ebo

When Voyager 1 and Voyager 2 launched into space in 1977, their mission was to explore the outer solar system, and over the following decade, they did so admirably.

With an 8-track tape memory system and onboard computers that are thousands of times weaker than the phone in your pocket, the two spacecraft sent back an immense amount of imagery and information about the four gas giants, Jupiter, Saturn, Uranus, and Neptune.

But NASA knew that after the planetary tour was complete, the Voyagers would remain on a trajectory toward interstellar space, having gained enough velocity from Jupiter's gravity to eventually escape the grasp of the sun. Since they will orbit the Milky Way for the foreseeable future, the Voyagers should carry a message from their maker, NASA scientists decided.

The Voyager team tapped famous astronomer and science popularizer Carl Sagan to compose that message. Sagan's committee chose a copper phonograph LP as their medium, and over the course of six weeks they produced the "Golden Record": a collection of sounds and images that will probably outlast all human artifacts on Earth.

///

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Letra: (Daniel Calveti y Rojo)

que piense en ti esta sociedad,
que piense en ti aquel que viene y va,
que digan que tu eres el Señor,
que piense en ti toda mi ciudad

De Norte a Sur
que las naciones bajen un pedazo de cielo,
que abrasen la humanidad
De Este a Oeste
que los gobernantes digan
que la paz se encuentra solo en Ti
Tú eres esperanza
eres medicina
y nuestras crisis en ti encuentran la salida

que piense en ti esta sociedad,
que piense en ti aquel que viene y va,
que digan que tu eres el Señor,
que piense en tu toda mi ciudad
que digan que tu eres el Señor,
que piense en tu toda mi ciudad
ahhhhhh
ohhh

De Norte a Sur
que las naciones bajen un pedazo de cielo,
que abrasen la humanidad
De Este a Oeste
que los gobernantes digan
que la paz se encuentra solo en Ti

Tú eres esperanza,
eres medicina
y nuestras crisis en ti encuentran la salida

Eres esperanza,
tú eres medicina
y nuestras crisis en ti encuentran la salida
uohhhhh que piense en ti toda mi ciudad
que piense en ti esta sociedad,
que piense en ti aquel que viene y va,
que digan que tu eres el Señor,
que piense en tu toda mi ciudad

que piense en ti esta sociedad, Jesús,
que piense en ti aquel que viene y va,
que digan que tu eres el Señor,
que piense en tu toda mi ciudad

13. Manejando el Tiempo - Daniel y Shari Calveti - Devocional Cristiano Para Parejas

Escucha este mensaje de Daniel Calveti sobre los Avengers

POPURRI DANIEL CALVETI: La Niña de Tus Ojos,Un Dia Mas, La Ultima Palabra, Te Amo Jesús...Y MÁS
Channel: ViViOficial

EL AMOR DE DIOS

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Descarga esta canción aquí: http://shar.es/iN0hV

Un cover de este excelente solo del maestro Kiko Cibrian, uno de mis solos favoritos.La pista fue hecha por mi con ayuda de mi primo Aldair Tovar en el piano, la batería fue grabada con EZdrummer, tiene algunos de ejecución y de edición pero espero que sea de su agrado. Saludos y Bendiciones!
Link para descargar pista, solo den saltar publicidad en la esquina superior derecha después de 5 segundos:
http://www.linkbucks.com/AJSHv
Equipo
-Fender Stratocaster
-Roland JC-120
-Roland Boss GT-10
-DAW Reaper
-Fender Jazz Bass
-Yamaha YPG-235

tu estas aqui video Pasion de Cristo ( video no oficial )