Q:what are minerals and what makes them a mineral
Space Probes is the first complete and fully illustrated history of the international space exploration program. Thoroughly up to date, it is organized by destination and includes every space probe launched by all countries active in space exploration the United States, the USSR/Russia, the European Union, Japan, China and India.
It’s a mix of hell and outer space.
how are u going to tell me mermaids dont exist then
i think this is the creepiest post i’ve ever seen.
I want to be alive when they start traveling deeper.. I can’t wait to see what they discover.
Simulating time travel: Doctor Who meets Professor Heisenberg
(Phys.org)—University of Queensland researchers have simulated time travel using light particles. Lead author and PhD student Martin Ringbauer, from UQ’s School of Mathematics and Physics, said the study used photons – single particles of light – to simulate quantum particles traveling through time and study their behavior, possibly revealing bizarre aspects of modern physics. “The question of time travel features at the interface between two of our most successful yet incompatible physical theories – Einstein’s general relativity and quantum mechanics,” Mr Ringbauer said. “Einstein’s theory describes the world at the very large scale of stars and galaxies, while quantum mechanics is an excellent description of the world at the very small scale of atoms and molecules.” Einstein’s theory suggests the possibility of travelling backwards in time by following a space-time path that returns to the starting point in space, but at an earlier time-a closed timelike curve. This possibility has puzzled physicists and philosophers alike since it was discovered by Kurt Gödel in 1949, as it seems to cause paradoxes in the classical world, such as the grandparents paradox, where a time traveller could prevent their grandparents from meeting, thus preventing the time traveller’s birth. This would make it impossible for the time traveller to have set out in the first place. UQ Physics Professor Tim Ralph said it was predicted in 1991 that time travel in the quantum world could avoid such paradoxes. “The properties of quantum particles are ‘fuzzy’ or uncertain to start with, so this gives them enough wiggle room to avoid inconsistent time travel situations,” he said. Professor Ralph said there was no evidence that nature behaved in ways other than standard quantum mechanics predicted,but this had not been tested in regimes where extreme effects of general relativity played a role, such as near a black hole. (via Simulating time travel: Doctor Who meets Professor Heisenberg)
A SpaceX Falcon 9 rocket is poised on the launch pad for a 6:08 pm EST launch from Cape Canaveral Florida. The vehicle is launching six satellites for Orbcomm, which will boost their network coverage. The fact sheet can be viewed here.
Although there is a 40% chance of launch, live coverage can be viewed at Spaceflightnow here.
Of particular note in these gorgeous shots are test articles for the Falcon 9’s landing legs, which the company will gather more flight data from.
Verizon’s new #InspireHerMind campaign wants to point out the importance of teaching young girls about STEM. To do that, they put out this commercial about how deeply ingrained gender expectations influence the way we raise our children, which in turn influences what they become interested in when they grow up–and not necessarily for the better. Geez, Verizon, heartbreaking much?
While I’m not sure that I’m all that happy with the big sad ~reveal~ of the commercial (lipgloss doesn’t always have to be the villain, guys!), the message is definitely worth examining. As it says at the end of the video, 66% of fourth grade girls say they like science and math, but only 18% of college-aged women end up majoring in STEM programs. One commercial might not be able to bridge that gap, but the more we talk about it, hopefully the more we’ll be able to overcome it as a community.
The Verizon #InspireHerMind site has some suggestions for ways to get your kids into science and math, if you’re so inclined. Which, you know, you should be. Science is awesome.