The frontispiece of William King Gregory’s 1951 work Evolution Emerging: A Survey of Changing Patterns from Primeval Life to Man, vol. I. Taken from Pietsch, 2012, Trees of Life: A Visual History of Evolution; The Johns Hopkins University Press, Baltimore.
Gregory’s massive two-volume Evolution Emerging that appeared in 1951 is a celebration of evolutionary trees if there ever was one, containing nearly a hundred examples, all beautifully designed and rendered. The first volume opens with an ingenius “Procession of the Vertebrates” as a frontispiece - a tight array of lineages emerging from the depths of a narrow rocky chasm of geological time, and diverging and ascending to recent times, with major events in the history of life displayed along the right margin.
Although obsolete on some points, the ambition and sheer amount of information put into this figure are admirable all on their own. It not only shows the divergences of vertebrate groups, both extinct and now living, it also matches the divergences with the geological record and shows how groups have diversified, expanded and shrunk, or become extinct over time. I can almost forgive the suggestion that evolution is a procession from “lower” forms to “higher” forms. Read more about why this is misleading here, and read more about the history of evolutionary trees here.
Mathematics is not merely a physical science that can give us evidence without experimentation, but it is also the sole language of the Universe. Consider this; If we were to ever stumble upon an intelligent species other than our own, mathematics would be the only manner in which we we could communicate with them. It is after all the most objective aspect of science.
Its not just a significant subject but also a boundlessly beautiful one. All you have to do is briefly read about great minds such as Archimedes, Eratosthenes, Calavieri and Lui hui to know what i’m talking about it. These brilliant beings came up with elegant yet extraordinary equations that could effortlessly break down the universe around us and give us human beings a predictive power like never before. One can write volumes about the beauty of mathematical proof.
Maybe, if we high school students we’re told this in our math classes, we would take it much more seriously.
Comet: A comet is a relatively small solar system body that orbits the Sun. When close enough to the Sun they display a visible coma (a fuzzy outline or atmosphere due to solar radiation) and sometimes a tail. It is composed of rocky material, ice, and gas. It comes from the Kuiper Belt and Oort Cloud. In summary, they are a relatively small, at times active, object whose ices can vaporize in sunlight forming an atmosphere (coma) of dust and gas and, sometimes, a tail of dust and/or gas.
Asteroid: Asteroids are small solar system bodies that orbit the Sun. Made of rock and metal, they can also contain organic compounds. Asteroids are similar to comets but do not have a visible coma (fuzzy outline and tail) like comets do. They range in size from a tiny speck to 500 km wide; most asteroids originate in the asteroid belt between Mars and Jupiter. Asteroids are believed to be debris left over from the formation of the solar system, and some even have their own moons. In summary, they are a relatively small, inactive, rocky body orbiting the Sun.
Meteoroid: A meteoroid is a small rock or particle of debris in our solar system. They range in size from dust to around 10 metres in diameter (larger objects are usually referred to as asteroids). Astronomers believe that meteoroids are rocky chunks that have broken off asteroids and planets. In summary, they are a small particle from a comet or asteroid orbiting the Sun.
Meteor: A meteoroid that burns up as it passes through the Earth’s atmosphere is known as a meteor. If you’ve ever looked up at the sky at night and seen a streak of light or ‘shooting star’ what you are actually seeing is a meteor. In summary, they are the light phenomenon which results when a meteoroid enters the Earth’s atmosphere and vaporizes; a shooting star.
Meteorite: A meteoroid that survives falling through the Earth’s atmosphere and colliding with the Earth’s surface is known as a meteorite. They’re a solid piece of debris that was originally an asteroid or a comet that entered the atmosphere and survived to impact the surface. Prior to impact, they are called meteoroids and become meteors when they fall through the planets atmosphere. In the process, they are heated to incandescence by air friction and form a bright trail, leading to the creation of a fireball or “shooting star”. In summary, they are a meteoroid that survives its passage through the Earth’s atmosphere and lands upon the Earth’s surface.
Heather Dewey-Hagborg. Artist, and biosecurity enthusiast.
Dewey-Hagborg displayed busts of complete strangers, using nothing from the DNA found in chewing gum in the streets and subways of New York City.
We are shedding our biological information all the time without knowing it,” Dewey-Hagborg says. “I think anonymity should be a choice.”
Her next project consisted of an ‘invisible’ perfume that consists of an 'Erase’ tube and a 'Replace’ tube. The 'erase’ tube, as one could probably guess, destroys, or erases, 99.5% of DNA that is found on the surface, and the 'replace’ tube follows the criteria of its title too by masking, or replacing, the remaining 0.5%.
Well then, there goes another reason not to spit your gum out on the streets. Let this be a lesson, kids. Freaky bust made out of your saliva, or properly disposing of your gum? The choice is yours.
In my opinion, this can’t be 100% accurate, since this sort of DNA sample can only reveal so much. This is probably an interpretation based on hints. The artist probably just built a software that picks the most likely eye, hair and skin colour, sex, or whatever else she can hypothesize, then made up a random person. Regardless, the work is amazing.
I’m not following enough blogs, so if you’re a blog dedicated to or posts an awful lot of the following then like/reblog this or message me or something and I’ll follow you! No follow back is expected :)
“THE words "science” and “censorship” do not sit easily together. And yet over the past decade, science has come to occupy an increasingly important role in debates over free speech.
One well-documented clash between science and censorship is in the use of libel actions to try to silence scientists and science writers; the journal Nature and Richard Dawkins are among the most recent to face suits. Scientists and science writers have emerged from some of these battles as free speech champions and martyrs, notably the writer Simon Singh, cardiologist Peter Wilmshurst and NASA climate scientist James Hansen.“- Newscientist
I was quite exasperated when i read this article on the challenges faced by scientists when it comes to freedom of expression. To begin with, I find it utterly lamentable that such a debate even thrives. How could we possibly permit something as remarkably significant and valuable as science mingle with politics. How has public affairs benefited us? How could one possibly persecute scientists to conceal precious information about the astonishing ways of the all that exists? You see, Science is a constant reminder of how exceptional the universe is, and i believe it is the only thing that could possibly divert us away from the path towards conflict and chaos. Science is the reason we all think in well-reasoned and rational manner. It is science that has permitted mankind to move forward in leaps and bounds within the past century, and if we snatch away its freedom of expression, It shall be a great leap backwards.