- 29/09/2016By the year 1956, the earth was "clean" and only fragments orbiting our planet were sporadic meteoroids or small space rocks ... but in 1957, it launched the first artificial satellite, Sputnik 1, the former Soviet Union. The rocket responsible for putting it into orbit dismissed one of his pieces, and marked the beginning of a great space junk heap that now orbit our planet.
And to exemplify the alarming situation, the astronomer Stuart Grey, University College London, created a video using data with the precise location of each piece of space junk, available in space-track.org. Remember that space debris shown in the video is not to scale.
The large pile of debris was accumulating at an exponential rate, and in 1961, the launch vehicle Ablestar, carrying the satellite Transit 4A, exploded in orbit, adding about 300 fragments volume that orbited the Earth.
In 2007, the number of trackable space debris (with size between the size of an apple up rocket engines) had already exceeded 9,000. And to top it off, the same year 2007 exploded a Chinese ballistic missile (test), adding 2,000 more pieces to swarm.
In 2012, more than 23,000 objects larger than 5 cm were being monitored by the Space Surveillance Network American. And if we consider above 1 cm objects, this value amounted to more than 500,000!
The danger of space debris
Even a small piece of 5 cm is considerable danger. Orbiting the Earth at hypersonic speeds, these tiny fragments may contain the same energy of a hand grenade, which can rip the protection of a spacecraft, for example.
The International Space Station (ISS), in turn, has special protection to prevent any fragment might compromise the mission and life of the astronauts on board, but still, she needs to do some maneuvers from time to time in order to avoid catastrophic collisions, as occurred in 2014 and 2015. in this last maneuver, the astronauts had to take shelter in the Soyuz capsule as the collision risk was too high.Space debris story (2013) The story of space debris highlighting how the unintended consequences of intense spaceflight activity during the past 60 years has resulted in a growing...
- Producer01/07/2016The Most Complex Machine on the Planet.Science tells us that the brain processes between 200 million and 400 trillion bits of information every second. We are actually aware of around 2,000. This means that at best estimate, we are aware of 0.00001% of whats going on at any moment. Add...
Comments11/07/2016 #13 CityVP ManjitThe starting point is important especially if we are looking adversity straight in the face. There is a great difference between the brain dealing with a hill of adversity rather than a brain that is facing an endless cliff face. We can build our resilience when the challenge is a hill, and we also acknowledge here that we have not really been on the receiving end of life. So from a state of health we can cultivate even more health but when one is facing extreme challenge, it is a long journey where the contemplative is a luxury for us, compared to those who are battling back from huge challenges. The kind of challenge I am talking about is featured in a documentary about British boxer Michael Watson https://www.youtube.com/watch?v=q9ZO0FL2Vx811/07/2016 #12 Margaret Aranda, MD, PhD#1 I'll wager that in Bali, time is slower than in other areas...thereby leaving you in a time continuum where you are protected from the actual passage of 'real' time. I'll also bet that as long as you're taking care of your mind, body and soul, that you are aging slower than the rest of the average big-city population in the rat-race. So have another beer on me, yeah. It's a good diuretic and on a hot day, it hits you like nothing else.04/07/2016 #8 Sharon KingIt's true Daniel @Daniel Donachie, we really only fire off a few synapses at any given moment and most of the time they're spent on keeping a tight fist over something that happened in our past that we can't let go of. Please keep making these videos, they're really interesting and super informative.
- Producer29/06/2016Passion + Science = A Writing ChallengeIn my last post I challenged readers and fellow authors to write about an animal or animals native to their own parts of the the world. We received a lot of fun responses, and I am hoping that we will get even more this time. People often...
Comments30/06/2016 #6 Jeremy Garrett#4 @Rod Loader, in the last of my examples, I made an attempt to write as you often do, making the subject feel very human and then explaining at the end that the subject is a human-like object (such as the wind, or the sea, or the summer). The great @debasish majumder is one of the few others who have written about electrons in such a way. Perhaps it is because of the great challenge that was involved, I am not sure, but the example about the electron is one of my favorites. Anyway, I want to thank you once more.29/06/2016 #4 Rod LoaderSummer left Aldridge on the best of terms.
The remnant of warmth twirled among the formal gardens and lay upon the thick green carpet, stretching toward the manor houses stone walls, which clung to her memory.
She had packed her summer items, bundled them into her vehicle, with its artificial warmth pushing away winter’s fingers, and hurried south until ocean greeted her and winter could not spread its white blanket.
There she shared her coffee, scones and strawberry jam with her friends, until her return, when flowers would welcome her and stone walls would only be cool to touch.29/06/2016 #2 Jeremy Garrett#1 Franci, I am greatly honored that you took the time to reply on both platforms, for several reasons. 1) each comment, like or "I find this relevant," or share boosts the number of views and 2) the fact that you have taken the time for this shows that you truly care, and that is great compliment. Thank you!29/06/2016 #1 Franci Eugenia Hoffman@Jeremy Garrett, I enjoyed your writing challenge. I am sharing what I posted on LinkedIn:
Jeremy, I accept the challenge: As I sit on my back porch, admiring nature, I glance to the right where our dove family has been nesting in our hanging plant. Well, the wait is over and the babies have arrived. They are a wondrous sight while being fed and nurtured.
The next thing I see is they are learning to fly and what a treat to watch! They use our high top glass table as their runaway. Not only is this the cutest thing to watch, but it's ingenious! How do they know the table will help them in their take off? Their parents stand on the table and give them a little shove, and off they go into flight. I find this all so fascinating.
I am just in awe at how the table came into play as a take-off and landing strip. The experience is well worth the time to enjoy nature and it's miracles.
We frequently sit on the porch in the evenings, and enjoy fireflies, the moon and stars, bedazzling the dark blue sky. But, these precious little birds played out an unforgettable role of the beauty of nature and science.
- Producer24/06/2016Solar Flares from the Giant Sunby Dr Margaret Aranda Looking at the moon and stars, the galaxies beyond command our minds be taken from the earth to all of creation, to infinity. When the moon turns blood red, people watch. People talk. When there is a shooting comet approaching,...
Comments11/07/2016 #15 Margaret Aranda, MD, PhD#12 @Dale Masters: I love the word you used: quiescent. It has so much onomatopoeia, and I'm going to incorporate it in my writings more. Oh! And what else was your point - little distraction there - oh! Good! 1800's was just yesterday to the sun! So he shouldn't be looking at us to be having any fire-burning fun LoL!24/06/2016 #8 Margaret Aranda, MD, PhD#4 CME...I got really confused because to me CME = Continuing Medical Education for doctors. Looked it up, CME here is Coronal Mass Ejections. i'm confused again because you stated they don't happen or haven't happened for 4K years....however, this is a 2012 image of a solar eruption, not an ejection. Pray tell more. Thanks. I'm thoroughly confused and request clarification. I did not use the acronym CME in my Buzz, so that's how my confusion began. Whew!24/06/2016 #5 Ali AnaniDr @AliAnani, I note how much he has spurred many of us on to internal awareness and self-expression through writing. Furthermore, he binds our group together with his altruistic character of acceptance, love, integrity, passion, encouragement, and yes! The flame that sparks the flame in us all!
I am very thankful and grateful to your kind words my beloved friend @Margaret Aranda, MD, PhD. Your "flame" of appreciation is beyond description with its weaving a web of love to you and your great soul.
BTW_ my newest buzz is on what Is Love? and the fklame of love here might help us in finding a "proximity" answer to this question.
Keep the flair Margaret with your deep thinking and passion to others. Again, I am moved by your sheer and genuine love-ly love24/06/2016 #3 David Grinberg@Margaret Aranda, MD, PhD, while I concur with your praise of the brilliant @Ali Anani, I also want to raise awareness about a certain type of solar flare for which many people are unaware: a Coronal Mass Ejection (CME). This type of solar flare can easily knock out the power grid of an entire content, shutting down the water supply, nuclear plants and all things that run on electricity. The worst possible CME can cause widespread destruction on Earth, theoretically ending human civilization. The interest point here is that one one hand, the sun gives Earth life; while on the other hand, the sun can easily disrupt or destroy life -- sending us back to the Stone Age. Just an FYI https://www.spaceweatherlive.com/en/help/what-is-a-coronal-mass-ejection-cme
- Producer11/06/2016Flying cars - Coches voladoresFlying carsThree years ago, Silicon Valley developed a fleeting infatuation with a startup called Zee.Aero. The company had set up shop right next to Google’s headquarters in Mountain View, Calif., which was curious, because Google tightly controls...
Comments12/06/2016 #12 James McElearneyThe future is definitely here, 2015 and 2016 have seen the arrival of some of mankinds most fantasised tech and gadgets, like the jetpack, Lexus have made a hoverboard, The arrival of VR and AR. and even the projects that have started in china on the new elevated buses, and Elon Musks hypertube project in California. I´m truly excited to see what´s in store over the next 10 years.12/06/2016 #9 Kevin PashukI guess I'll have to rewrite this post: https://www.linkedin.com/pulse/how-add-more-work-your-team-kevin-pashuk12/06/2016 #7 AnonymousLinkedIn long-fotm post by Prof. Claudio Schoen entitled: "George Jetson, Engineer" cc. @Aleta Curry :) https://www.linkedin.com/pulse/20141011122058-65745067-george-jetson-engineer?trkInfo=VSRPsearchId%3A2480211261465693955331%2CVSRPtargetId%3A6957199446609293631%2CVSRPcmpt%3Aprimary&trk=vsrp_influencer_content_res_name12/06/2016 #5 Aleta CurryThat was such an interesting read, @Javier beBee. Some years ago I heard Oprah Winfrey talking about Skype and saying it was like 'The Jetsons' when she was a child; 'We are "The Jetsons" now' she said. This is the next step! I remember when I was little fantasizing with my friends about what it would be like when we grew up, we'd be old women telling our kids that they were lucky to go to school in a helicopter, 'when I was a child, we were all squashed up in the back of one little car!' Well, that didn't happen, but I may yet be saying something similar to my grandchildren!12/06/2016 #1 CityVP ManjitReally enjoyed learning about this https://www.youtube.com/watch?v=_X3zXeqiNKM Back in the early 2000's I thought it was cool that venture capitalist Steve Jurvetson was using his wealth to pursue his interest in small rocket launches, but this makes his launch pad look like a firework in a milk bottle. https://www.ted.com/talks/steve_jurvetson_on_model_rocketry?language=en