Another actively working photographer, Sally Mann is just in the middle of her career. She was named America’s Best Photographer by Time magazine in 2001 for her stunning work of her family, as well as southern landscapes and her series of decomposing bodies. Her work has pushed buttons, from nude photographs of her children to rotting corpses, and she likes it that way. Students can study her work to see how it’s possible to keep a consistent style and vision, even when working with subjects that are completely unlike one another.
Philippe Halsman is best known for his jumping photographs of famous subjects from the middle of the 20th century, from Richard Nixon to the Duke and Duchess of Windsor. Halsman’s body of work also includes surreal portraits of the artist Salvador Dali that leave the viewer puzzled and trying to figure out how the photograph was physically possible. Any photography student who is interested in pushing the envelope with portraits should study Phillipe Halsman’s portraiture.
Norman Mailer said that “Giving a camera to Diane Arbus is like putting a live grenade in the hands of a child.” Her photographs are shocking, catching subjects in an unmasked moment, whether they were of famous writers and actors or transvestites. In this style, Arbus teaches a lesson about not aiming to capture the surface of a subject, but rather, working to reveal the subject’s true self through art.
Dalí was a skilled draftsman, best known for the striking and bizarre images in his surrealist work. His painterly skills are often attributed to the influence of Renaissance masters. His best-known work, The Persistence of Memory, was completed in 1931. Dalí’s expansive artistic repertoire includes film, sculpture, and photography, in collaboration with a range of artists in a variety of media.
Dalí attributed his “love of everything that is gilded and excessive, my passion for luxury and my love of oriental clothes” to a self-styled “Arab lineage”, claiming that his ancestors were descended from the Moors.
Dalí was highly imaginative, and also had an affinity for partaking in unusual and grandiose behavior. His eccentric manner and attention-grabbing public actions sometimes drew more attention than his artwork to the dismay of those who held his work in high esteem and to the irritation of his critics.
(Taken from http://en.wikipedia.org/wiki/Salvador_Dal%C3%AD)
If you want to give a mathematician something to try to wrap their head around, a Klein bottle is a good place to start. A real Klein bottle is an object with no inside and no outside that can only exist in four dimensions. These glass models exist in three, which means that unlike the real thing, they can actually hold liquid.
The difference between the models and the real thing is that by adding an extra dimension, you can make it so that the neck of the bottle doesn’t actually intersect the side of the bottle. Take a couple aspirin and try to picture that in your head.
Gallium is a silvery metal with atomic number 31. It’s used in semiconductors and LEDs, but the cool thing about it is its melting point, which is only about 85 degrees Fahrenheit. If you hold a solid gallium crystal in your hand, your body heat will cause it to slowly melt into a silvery metallic puddle. Pour it into a dish, and it freezes back into a solid.
While you probably shouldn’t lick your fingers after playing with it, gallium isn’t toxic and won’t make you crazy like mercury does. And if you get tired of it, you can melt it onto glass and make yourself a mirror.
The Gömböc is a self-righting object, which means that no matter which way you put it down, it stands itself back up. It’s like a Weeble, except it doesn’t cheat by having a weight at the bottom, and it’s the only shape that can do this.
The existence of a shape with these properties was conjectured in 1995, but it took ten years for someone to figure out how to actually make one that worked. And then everyone was embarrassed when it turned out that turtles had evolved this same basic shape in their shells a long time ago, to make it easier for them to roll themselves back over if they get flipped.
Also known as frozen smoke, Aerogel is the world’s lowest density solid, clocking in at 96% air. It’s basically just a gel made from silicon, except all the liquid has been taken out and replaced with gas instead. If you hold a small piece in your hand, it’s practically impossible to either see or feel, but if you poke it, it’s like styrofoam.
Aerogel isn’t just neat, it’s useful. It supports up to 4,000 times its own weight and can apparently withstand a direct blast from two pounds of dynamite. It’s also the best insulator in existence, which is why we don’t have Aerogel jackets: it works so well that people were complaining about overheating on Mt. Everest.
We all do it and we have all said it. I want one of those- well now you can at this site which sells everything from the latest hi tech gadget right down to the straight up strange and baffling!
Don’t you just think that skin amongst is other things is just amazing, you cut yourself and a blood clot is formed (scab) and then within a matter of weeks new skin is grown over the wound as if it wasn’t even there in the first place! This is due to stem cells and other factors but stem cells play a major part in tissue repair and growth. Imagine in years to come if humans were to advance in this field and it was possible to regrow a finger that was amputated or a limb. I am more than curious about this subject and hopefully after reading this post you will be too.
The following is taken from http://stemcells.nih.gov/info/basics/basics1.asp
Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth. In addition, in many tissues they serve as a sort of internal repair system, dividing essentially without limit to replenish other cells as long as the person or animal is still alive. When a stem cell divides, each new cell has the potential either to remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell.
Stem cells are distinguished from other cell types by two important characteristics. First, they are unspecialized cells capable of renewing themselves through cell division, sometimes after long periods of inactivity. Second, under certain physiologic or experimental conditions, they can be induced to become tissue- or organ-specific cells with special functions. In some organs, such as the gut and bone marrow, stem cells regularly divide to repair and replace worn out or damaged tissues. In other organs, however, such as the pancreas and the heart, stem cells only divide under special conditions.
Until recently, scientists primarily worked with two kinds of stem cells from animals and humans: embryonic stem cells and non-embryonic “somatic” or “adult” stem cells. The functions and characteristics of these cells will be explained in this document. Scientists discovered ways to derive embryonic stem cells from early mouse embryos nearly 30 years ago, in 1981. The detailed study of the biology of mouse stem cells led to the discovery, in 1998, of a method to derive stem cells from human embryos and grow the cells in the laboratory. These cells are called human embryonic stem cells. The embryos used in these studies were created for reproductive purposes through in vitro fertilization procedures. When they were no longer needed for that purpose, they were donated for research with the informed consent of the donor. In 2006, researchers made another breakthrough by identifying conditions that would allow some specialized adult cells to be “reprogrammed” genetically to assume a stem cell-like state. This new type of stem cell, called induced pluripotent stem cells (iPSCs), will be discussed in a later section of this document.
Stem cells are important for living organisms for many reasons. In the 3- to 5-day-old embryo, called a blastocyst, the inner cells give rise to the entire body of the organism, including all of the many specialized cell types and organs such as the heart, lung, skin, sperm, eggs and other tissues. In some adult tissues, such as bone marrow, muscle, and brain, discrete populations of adult stem cells generate replacements for cells that are lost through normal wear and tear, injury, or disease.
Given their unique regenerative abilities, stem cells offer new potentials for treating diseases such as diabetes, and heart disease. However, much work remains to be done in the laboratory and the clinic to understand how to use these cells for cell-based therapies to treat disease, which is also referred to as regenerative or reparative medicine.
Laboratory studies of stem cells enable scientists to learn about the cells’ essential properties and what makes them different from specialized cell types. Scientists are already using stem cells in the laboratory to screen new drugs and to develop model systems to study normal growth and identify the causes of birth defects.
Research on stem cells continues to advance knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms. Stem cell research is one of the most fascinating areas of contemporary biology, but, as with many expanding fields of scientific inquiry, research on stem cells raises scientific questions as rapidly as it generates new discoveries.