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How big does a mirror have to be for you to see yourself in it? Exploratorium staff physicist Thomas Humphrey describes an activity you can use in your classroom to investigate simple optics. On May 11, 2009, the space shuttle Atlantis was launched from the Kennedy Space Center and docked with the Hubble Space Telescope 360 miles above the earth. During Servicing Mission 4 (SM4), astronauts installed new, cutting-edge scientific instruments and replaced gyroscopes, batteries, and other equipment. After a difficult but very successful upgrade of the telescope, the astronauts released Hubble on May 19. The Exploratorium Webcast team will bring you two live Webcasts (May 20 & May 23) about this arduous mission and the future of the telescope. Children’s book author David Schwartz tells how big numbers got him excited about math when he was a kid.
TI staff educator Eric Muller hits me up for change, and then demonstrates a neat science activity using dry ice.
Snow Mirror is the first in a series of pieces that celebrate slowness and black and white, in this piece the image of the viewer is created by the congregation and accumulation of white snow flakes in areas of the image that are brighter. The result is projected on a transparent silk fabric which creates a feeling of the flakes being suspended in space. Artist Daniel Rozin will be featured in the Exploratorium's 2009 exhibition, Reflections. Shaking Time Mirror is the forth of the "Time Series" Software Mirrors. This series of software mirrors examines notions of time, scanning, motion and stagnation. In Shaking Time Mirror only areas of movement on the screen are refreshed with current video, the rest of the screen ages and turns into a gray stagnant crust. When a viewer moves in front of the piece the crust flakes of and revels the full colored image of the viewer, which gradually grays back. Artist Daniel Rozin will be featured in the Exploratorium's summer exhibition, Reflections. In May 2009, the ROV Jason captured these images of violent explosions of the West Mata volcano near Fiji. At almost 4,000 feet underwater, this is the deepest erupting volcano ever witnessed and captured on video. It's also the first time anyone has ever observed the formation of deep-ocean seafloor as it's happening. Self Centered Mirror is an arrangement of 34 vertical panes of mirror. It has a retro-reflective behavior, this means that anyone standing in front of this mirror will see themselves reflected on all 34 panes, The mirror will also remove anyone else in the space from being reflected. This piece lifts the last obstacle from in the quest to total narcisism. Artist Dan Rozin will be featured in the Exploratorium's summer exhibition, Reflections. A story can help make a subject come alive for your students. TI teacher coach Carol Murphy talks about the myriad ways she’s used storytelling in her science classes. Mirrors Mirror creates the viewers' image by directing 768 small mirror tiles in a way that reflects different portions of their image. The piece is made of 24 columns of "pixels" that form a concaved curved surface that is aimed at the viewer. Brighter pixels reflect the upper body of the viewer and the wall behind him and dark ones are aimed lower. Artist Daniel Rozin will be featured in the Exploratorium's 2009 summer exhibition, Reflections.