Does a straw have 2 holes topology? The mathematically correct answer is1 hole. A straw is topologically the product of a circle, which has 1 hole, and an interval, which has 0 holes. So the straw has 1 hole. ... Intuitively, we can agree a circle has 1 hole–the simple closed cu...
In general, coal is thought to have a ' dual porosity system: large fractures and smaller pores. The pores themselves are classed into three size classes: macro-, meso- and micropores representing diameters >50 nm, 2-50 nm and <2 nm, respectively. Methane will move through the coal, ...
Although most bodies are discovered long before dust has returned to dust, enough time -- anywhere, say, from a few days to many years -- has often passed that it's impossible to visually determine the identity of a body found under mysterious circumstances. Skin, muscle and other tissue ...
Although most bodies are discovered long before dust has returned to dust, enough time -- anywhere, say, from a few days to many years -- has often passed that it's impossible to visually determine the identity of a body found under mysterious circumstances. Skin, muscle and other tissue ...
of green. But when I ask a gathering of children and elders in the village of Kpaika, about 30 miles from the park’s western border, how many of them have visited Garamba, no one raises a hand. When I ask, “How many of you have been kidnapped by the LRA?”—I understand why...
I did the world's first brain surgery in a bear, in the rainforest, using a mattress pump in an emergency to complete the operation. I've anesthetized hundreds of seals, many of which have tried to commit suicide under anesthesia.
How does the bookHolesend? Holes: Holesis a book by Louis Sachar. It was adapted into a film version in 2003, starring Sigourney Weaver as the evil Warden and Shia LaBeouf as Stanley Yelnats. The book has been extremely influential in the world of children's literature, as it deals with...
If possible, choose specimens with straight, tapering trunks, or for a more unique look, the beginnings of an interesting bend or knot that can be used in your design. Remove any dead leaves or needles to really inspect your potential choices. Many of the branches will have to be cut to...
I think when I came on it was this critical point where it was either going to remain a side project and there was a question mark around how much or how big or how many books we could put out. I think when I came on it was just ... The other path was, "Okay, we ca...
A basic hologram is easier to setup than you might think. HowStuffWorks It doesn't take very many tools to make a hologram. You can make one with: A laser: Red lasers, usually helium-neon (HeNe) lasers, are common in holography. Some home holography experiments rely on the diodes fro...