Optical illusions #sciphy4all #science #physics #optical #illusion #opticalillusion #Kokichi #Sugihara #KokichiSugihara #opticalillusions #optical_illusion
#sciphy4all #science #physics #english #important#importanter
Το Αιγαίο από το διάστημα! Το φαινόμενο sunglint στο Αιγαίο από το διαστημοσυσκευή MODIS της NASA via NASA Earth. Διαβάστε περισσότερα εδώ: https://goo.gl/LqUgJJ
Quantum phenomenon in neutron star (video) https://goo.gl/OcDlcz
A hypotrochoid is a roulette traced by a point P attached to a circle of radius b rolling around the inside of a fixed circle of radius a, where P is a distance h from the center of the interior circle. The parametric equations for a hypotrochoid are:
x=(a-b)cost + hcos[(a-b)t/b] y=(a-b)sint + hsin[(a-b)t/b]
The history of Hubble - Η ιστορία του διαστημικού τηλεσκοπίου που έχει γράψει ιστορία με τις φωτογραφίες του, Hubble.
Since its launch in 1990, the Hubble Space Telescope has sent back mind-blowing images that not only changed our understanding of our universe, but also changed where we see our universe.
Hubble is more than a science instrument; it’s a cultural phenomenon! Take a moment to think about where you’ve seen the Hubble Space Telescope or Hubble images in your daily life.
Maybe you walk by a mural inspired by Hubble images everyday on your way to work.
Perhaps you’ve even created art based on Hubble images.
We want to see the Hubble impact in your life! Share your photos with us on Instagram, Twitter, Flickr and Facebook. If a #SpotHubble image catches our eye, we may share your post on our NASA Hubble social media accounts.
There are four social media platforms that you can use to submit your work:
Flickr: Submit your photos to the Spot Hubble Flickr Group
Instagram: Use the Instagram app to upload your photo, and in the description include #SpotHubble and #NASAGoddard
Twitter: Share your image on Twitter and include #SpotHubble in the tweet
Facebook: Share your image on Facebook and include #SpotHubble in the post
Please note, submissions are subject to certain terms and conditions.
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Τεστ γνώσεων!
Star Trek has inspired generations of NASA employees to boldly go exploring strange new worlds and develop the technologies for making science fiction become science reality. We recently caught up with Star Trek Beyond actors Chris Pine (Kirk) and Zachary Quinto (Spock) and quizzed them on some NASA trivia. Before you take a look at their answers (video at bottom of post), take a stab at answering them yourself! See how well you do:
1. What does the first “A” in NASA stand for? A) Adventure B) Aeronautics
2. On July 4 this year, we sent a spacecraft into orbit around what planet? A) Jupiter B) Pluto
3. What do scientists call a planet that orbits a star outside our solar system? A) Exoplanet B) Nebula
4. Although it never flew in space, what was the name of the first space shuttle? A) Discovery B) Enterprise
5. What is a light-year a measurement of? A) Time B) Distance
6. When looking for habitable worlds around other stars, we want to find planets that are what? A) Goldilocks zone planets B) Class M Planets
7. Olympus Mons is the largest known volcano in our solar system. What planet is it on? A) Mars B) Earth
8. Which NASA satellite made an appearance in Star Trek the Motion Picture? A) Voyager B) Galileo
9. Who was the first American woman in space? A) Sally Ride B) Janice Lester
10. While developing life support for Mars missions, what NASA Spinoff was developed? A) Enriched baby food B) Anti-gravity boots
11. What technology makes replication of spare parts a reality on the International Space Station? A) Closed-Loop System B) 3-D Printer
12. What two companies are contracted by NASA to carry astronauts to and from the space station? A) Boeing and SpaceX B) Amazon and Virgin Galactic
ANSWERS: 1:B, 2:A, 3:A, 4:B, 5:B, 6:A, 7:A, 8:A, 9:A, 10:A, 11:B, 12:A
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com