In a new age of space exploration, some of the boldest efforts at putting humans into space are now those of private companies. Brian Cox goes behind the scenes to explore what is happening in privately financed space flight.
Brian Cox explains why black holes are invisible. Black holes are the most destructive forces in the universe, able to devour whole stars. We cannot see them, but we can see the effect they have on the surrounding space.
The Queensland Rocketry Society's Ari Piirainen demonstrates how hobbyists build and launch rockets, explaining how to get started with a kit, what the different motor sizes are, and how launches are conducted safely.
Questacon's Patrick Healan demonstrates how a balloon bursts in different ways depending on where you try to pop it, all in slow motion, revealing how pressure makes a difference, and how a spark makes a hydrogen balloon explode in flames.
Galileo space probe images from Jupiter's moon Europa, revealing jagged ice on the surface, and detecting a magnetic field consistent with an ocean under the surface, raising the possibility of life on the satellite.
Questacon's David and Sam demonstrate how a flame tube responds to the different sounds effect flames emitted from a perforated gas-filled tube, revealing the relationship between sound waves and pressure, as a kind of "flaming graphics equaliser".
Leela investigates the unique noise cuckoo clocks make. She interviews Justin Lang, who is a cuckoo clock servicer by profession. These German, handcarved creations are all unique and are the 'cuckoo' sounds in them. We learn that the sound from the actual bird in the German forests was a 'good luck' signal for hunters.
Space is getting crowded. And it's filling up with junk every time we launch a satellite. But this isn't like Earth-bound debris. It's travelling at speeds of up to 17,000 mph. This makes it extremely dangerous, not just for the astronauts living and working in space but also for modern life on Earth. Because everything we do - from making phone calls, flying planes, taking money out of the bank, to watching television or getting the weather forecast - is all run from vulnerable satellites orbiting the planet. This documentary explores the threat from space junk and joins the scientists searching for ways to clean up the debris.
NASA scientists believe, that far from being dead, Mars holds untold potential. Nearly half a century of Mars exploration has yielded tantalising clues that Mars may once have harboured life - and may harbour it still.
In the known universe, size matters. From the enormity of the galaxy, to the tiny atoms that are the building blocks of everything, the universe is a place of extreme sizes. From the unimaginably big to the incomprehensibly small, explore size in the universe and exactly what it means to us and our understanding of the cosmos.
They sound something alike ... but they are oh-so different. Pulsars are tiny - only a few miles across - but they spin as fast as a kitchen blender and sweep the sky with beacons of radiation that make them appear to flash on and off. They have unbelievably strong magnetic fields, are more accurate than atomic clocks ... and they can even tell aliens just where to find the Earth! Quasars are at the other end of the spectrum.
The search for extra-terrestrial life is on. Earth is perfect for life. Our temperate planet is neither too near nor too far from the Sun. With Venus too close and Mars too distant, if they once had life, they most likely don’t have now. The only other possibility in the Solar System is Europa, a moon of Jupiter. There, in an ocean beneath Europa’s icy surface, bacteria-like organisms could feed on volcanic vents. But the best chance of life is on Earth-like planets around other stars.
Science Bank is a series of programs which demonstrate a variety of science experiments with graphical explanations and real life applications. This episode contains the visible spectrum; longer waves and shorter waves
The measurement and scale of the Universe. How far is a star or a galaxy? Distances are so vast they are described in light years - the distance light travels in a year. Nearby stars are measured by trigonometry - the technique of parallax. Farther out, astronomers use so-called "standard candles". The pulsing and luminosity of Cepheid Variable stars works up to 90 million light years. Then, Type 1A supernovae are the candle. Beyond that the "redshift" of galaxies reveals their distances.
Many argue that flying saucers and other extra-terrestrial space ships continuously visit the earth. If that were true, what kinds of technologies would such alien spacecraft require? And do eyewitness reports of UFO sightings jibe with modern theories of how interstellar travel might be possible? Authors, astronomers and theoretical physicists weigh in with the blueprints for inertia-cancelling devices, nuclear-powered craft, antimatter propulsion systems and even warp drives. Based on Einstein's theories and countless scientific studies, we'll find out how these visitors might bridge the vast distances between the stars. And if they could survive such hazardous journeys, are they flesh and blood or intelligent machines?The Universe: UFOs The Real Deal - Series 6, Ep 6 of 7
The Sun is our local star - a nuclear reactor at the hub of the Solar System. Each second, the Sun loses four million tonnes of mass - energy that will keep the Sun blazing for another five billion years. Yet the Sun, overall, is no denser than yoghurt, a cauldron of incandescent gas spewing flares and prominences. Electrically charged particles stream from the Sun - the solar wind. Twists in the magnetic field trigger gigantic ejections that turn the wind into a storm.
Tonight, to understand the connection between us and the universe, Richard goes back to the start and, at the top of his tower, builds a universe from scratch. From suns to galaxies, Richard constructs it all with help found in the most unlikely places.
Many argue that flying saucers and other extra-terrestrial space ships continuously visit the earth. If that were true, what kinds of technologies would such alien spacecraft require? And do eyewitness reports of UFO sightings jibe with modern theories of how interstellar travel might be possible? Authors, astronomers and theoretical physicists weigh in with the blueprints for inertia-cancelling devices, nuclear-powered craft, antimatter propulsion systems and even warp drives.
Physics is the science that explores the laws and forces that govern the universe. Bring out the boffins in your class with these experiments and reveal how it all works. (ACSSU049, ACSSU076, ACSSU080)
Capture students’ interest and find out what they think they know about how living things, such as small animals. Make their playground experience more meaningful with this curated playlist. (ACSSU017,ACSSU211,VCSSU042,VCSSU043,VCSSU057)
Explore the science behind objects and things around us and what material make up their physical properties. Find out how to use your senses to observe and describe the form and function of different objects. (ACSSU049, ACSSU046,ACSSU074,ACSSU076,VCSSU059,VCSSU063,VCSSU076,VCSSU080)