reflection
esiegel | May 6, 2013"Why I came here, I know not; where I shall go it is useless to inquire - in the midst of myriads of the living and the dead worlds, stars, systems, infinity, why should I be anxious about an atom?" -Lord Byron
Welcome back to another Messier Monday here on Starts With a Bang! Messier's 18th-Century catalogue of 110 deep-sky objects that could potentially be confused with comets by skywatchers has endured as one of the greatest collections of deep-sky objects clearly visible to amateur and professional astronomers worldwide!
Image credit: ScienceSouth - Tony's Astronomy Corner, via http://…
esiegel | December 10, 2012"My role in society, or any artist's or poet's role, is to try and express what we all feel. Not to tell people how to feel. Not as a preacher, not as a leader, but as a reflection of us all." -John Lennon
Welcome to the latest edition of Messier Monday, where each week we take an in-depth look at one of the 110 deep-sky objects in the Messier Catalog. These objects, all of which are visible from certain northern latitudes at certain times of the year, were catalogued explicitly to prevent comet-hunters from confusing these static objects with potential comets.
Image credit: SEDS Messier…
rallain | August 12, 2010There is this commercial that has been coming on lately showing some people reading the Kindle at the beach. Why is this a selling point? It has to do with the way the Kindle works compared to something like the iPad. I would take a picture, but I have neither of these devices. Instead, I will make a diagram.
Maybe you can't tell from my diagram, but I am using the black rays to represent light reflected from the Kindle and red rays to represent light produced from the iPad. And that is the key. The Kindle does not have a light source, it is very similar to a piece of paper. The iPad…
rallain | January 14, 2010Here is a picture of something you have seen before.
These are two pictures of the same location in my house. The one on the left is taken when the Sun was up outside and the other one when it was dark outside. For both pictures, I had the same lights turned on inside. So, why does it do this? Why can you see stuff outside when it is bright outside, but you don't see a reflection of the stuff outside? Why when it is dark outside, does the opposite happen? You know what I am going to do next, right? Diagram. Here is a diagram for when it is dark outside.
The person can see the blue…
rallain | December 1, 2009One of the roads near my house was just redone. They added some awesome retroreflectors in the middle. Here is a shot. No wait, I don't have a picture of that. I tried to take one, but it just didn't turn out very well. Oh, you know what it is supposed to look like. It looks like little tiny lights in the middle of the road.
What makes these things so cool? Why do they look like they are battery powered or something? Maybe it would be helpful to compare retroreflectors to some other materials. I can group stuff in the following manner:
Shiny stuff
Non-shiny stuff
Retroreflectors
What…
bioephemera | May 2, 2009
The Ambassadors, 1533
Hans Holbein the Younger
In the artistic technique called anamorphosis, an object is depicted in distorted perspective, so that the viewer has to take special action, like looking from a specific angle, to see the "correct" image.
The most famous example of anamorphic painting is Hans Holbein's The Ambassadors (1533), a double portrait in which the illusion of highly detailed reality is fractured by a blurred grey streak superimposed across the painting's bottom third. If one stands at an acute angle, close to the painting, the blurred streak resolves itself into a…
grrlscientist | November 8, 2008tags: Central Park Lake reflection, NYC, NYC reflection at night, image of the day
New York City Reflected in Central Park Lake.
Image: Bob Levy, author of Club George,
November 2, 2008 6:15PM [larger view].
grrlscientist | November 7, 2008tags: turtle pond Central Park, NYC, Turtle Pond Reflection, image of the day
Turtle Pond, Central Park, Reflection.
Image: Bob Levy, author of Club George, November 2, 2008 [larger view].
The photographer writes:
The reflection of these particular Westside buildings in Turtle Pond is a favorite photographic subject of mine especially in the Fall. It's not just the colors that attract me. The fallen leaves floating on the water give the image an added texture.