some of the most advanced forms of ocean life are struggling to survive while the most primitive are thriving and spreading. Fish, corals and marine mammals are dying while algae, bacteria and jellyfish are growing unchecked.
So algae and jellyfish are primitive, and corals, which are essentially jellyfish infected with algae, are advanced. Got that?
In the genetic code, sets of three DNA units specify various kinds of amino acid, the units of proteins. A curious feature of the code is that it is redundant, meaning that a given amino acid can be defined by any of several different triplets. Biologists have long speculated that the redundancy may have been designed so as to coexist with some other kind of code, and this, Dr. Segal said, could be the nucleosome code.
Except that the amino acid code existed in Bacteria long before the Eukarya and Archaea, and Bacteria don't have histones, the core feature of nucleosomes. There may be another code that explains the redudancy, but it's probably not a nucleosome code.
No, it said it was based on one fossil. A series of bones from the same organism, especially if still articulated together, is considered as one fossil. As for the formation of rock from softer stuff, the answer lies in pressure, deposition of minerals by fluids, lots of time, and a variety of other factors I've neglected to mention.
Maybe, but what does that have to do with this? There was more than one bone. RTFA, whydontya? And the process of fossilization is very well characterized. Once something is ensconced in rock it can last a long time. What strange pseudoscience told you otherwise?
The creature was a glider, not a flier. Its entire "flight" was a controlled stall in a peculiar almost-vertical configuration that would have allowed it to grab onto things with its forearms as it fell. Also, the almost-vertical configuration means that it's hard to consider any edges as being "leading edges." The large area of the tail membrane would make it a more likely target than the forearm membranes.
The -ite ending has been used extensively in geology to name rocks and minerals. Once meteroids have fallen on the ground it becomes apparent they are rocks and thus deserve an -ite ending, and even the various types of meteorites or the minerals in them have -ite endings: Pallasites, Mesosiderites, Diogenites, Howardites, eucrites, Chondrites, Enstatite, Bronzite, Amphoterite, Olivine-pigeonite, Ataxites, octahedrites, Hexahedrites.... We might as well rename everything and rewrite every geology and astronomy book on the planet.
Electrical forces are stonger than gravitational forces, if you are comparing the forces between two protons, for example. But electric forces can be shielded and gravitational forces can't. Most solid objects in the universe are electrically neutral or close because they have roughly similar numbers of protons and electrons. As a matter of fact, objects tend to resist acquiring a net charge.. Strip away some electrons and the positively charged object will pull in electrons to become neutral again. Gravity, on the other hand, is always additive. That is why it is gravity and not an electrical force that pulls you to the Earth's surface.
An elemental analyis (two, actually) of the red rain cells found that along with Carbon, Oxygen, and Hydrogen there were significant amounts of Nitrogen, Silicon, Iron, and a few other metals. Somehow these microbes were able to grow on cedar oil (containing mostly C, H, and a little O). Did they transmute the lighter elements into heavier elements? Does the biochemistry of these red rain microbes only involve C, O, and H? I find this hard to believe.
Your impact numbers are not directly comparable. The 70-150 impacts per year are for large impacts that are recordable by seismometer, i.e. objects 100 g to 1000 kg landing anywhere on the moons surface. The 1400 to 10,000 impacts per hour are for meteors that would be visible from one spot on the Moon's surface if it had an atmosphere, caused by metorites that are mostly microscopic or the size of sand grains.
If you are referring to Challenger, it became engulfed in flame 74 seconds into flight. The intact crew cabin smashed into the ocean 164 seconds later. I wouldn't call that immediately.
What are the chances evaporated resin and hardener are going to condense on nearby objects like camera lenses? And it won't be easy to bake the stuff off either.
From TFA: "On its journey, the Stardust also spent 195 days collecting particles flowing through the solar system from stars far out in space. Scientists said there appeared to be hundreds of samples of these particles."
Ahemmm.... A little sanity check is in order here. The trace "large enough to put a small finger through" was in aerogel, a material so thin it is 99.8% empty space.
The Oh-my-god particle had an energy of 3.2 x 10^20 eV, whereas RHIC can only get particles up to 10^11 eV/nucleon (~ 2 x 10^13 eV for gold). For 4.55 billion years Nature has been performing experiments at least 10 million times more energetic than anything we can do without catastrophe.
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Xerox should be sued for first marketing the photocopier.
Assuming you can only fund 1$ per project....
Except that the amino acid code existed in Bacteria long before the Eukarya and Archaea, and Bacteria don't have histones, the core feature of nucleosomes. There may be another code that explains the redudancy, but it's probably not a nucleosome code.
No, it said it was based on one fossil. A series of bones from the same organism, especially if still articulated together, is considered as one fossil. As for the formation of rock from softer stuff, the answer lies in pressure, deposition of minerals by fluids, lots of time, and a variety of other factors I've neglected to mention.
The car is inappropriately named, considering Tesla's work with AC.
Maybe, but what does that have to do with this? There was more than one bone. RTFA, whydontya? And the process of fossilization is very well characterized. Once something is ensconced in rock it can last a long time. What strange pseudoscience told you otherwise?
No animals that I know of, but there are plenty of helicopter seeds. Maple the best example.
The creature was a glider, not a flier. Its entire "flight" was a controlled stall in a peculiar almost-vertical configuration that would have allowed it to grab onto things with its forearms as it fell. Also, the almost-vertical configuration means that it's hard to consider any edges as being "leading edges." The large area of the tail membrane would make it a more likely target than the forearm membranes.
The -ite ending has been used extensively in geology to name rocks and minerals. Once meteroids have fallen on the ground it becomes apparent they are rocks and thus deserve an -ite ending, and even the various types of meteorites or the minerals in them have -ite endings: Pallasites, Mesosiderites, Diogenites, Howardites, eucrites, Chondrites, Enstatite, Bronzite, Amphoterite, Olivine-pigeonite, Ataxites, octahedrites, Hexahedrites.... We might as well rename everything and rewrite every geology and astronomy book on the planet.
You'd be pretty damn surprised if you blew up a balloon and it formed the shape of a cube, wouldn't you? Some shapes are more probable than others.
It originally appeared on Space.com where it occupies only one page.
Electrical forces are stonger than gravitational forces, if you are comparing the forces between two protons, for example. But electric forces can be shielded and gravitational forces can't. Most solid objects in the universe are electrically neutral or close because they have roughly similar numbers of protons and electrons. As a matter of fact, objects tend to resist acquiring a net charge.. Strip away some electrons and the positively charged object will pull in electrons to become neutral again. Gravity, on the other hand, is always additive. That is why it is gravity and not an electrical force that pulls you to the Earth's surface.
An elemental analyis (two, actually) of the red rain cells found that along with Carbon, Oxygen, and Hydrogen there were significant amounts of Nitrogen, Silicon, Iron, and a few other metals. Somehow these microbes were able to grow on cedar oil (containing mostly C, H, and a little O). Did they transmute the lighter elements into heavier elements? Does the biochemistry of these red rain microbes only involve C, O, and H? I find this hard to believe.
Hmmm... and water is neutrally bouyant in water, so water "will be pushed, by the current, through the whole turbine without ever touching it."
You keep getting modded down because you keep labeling people's legitimate concerns with terms like "irrational" and "silly."
The recent news was not that he died but about how he died: a sword blow to the knee.
Your impact numbers are not directly comparable. The 70-150 impacts per year are for large impacts that are recordable by seismometer, i.e. objects 100 g to 1000 kg landing anywhere on the moons surface. The 1400 to 10,000 impacts per hour are for meteors that would be visible from one spot on the Moon's surface if it had an atmosphere, caused by metorites that are mostly microscopic or the size of sand grains.
What? The Andromeda Galaxy is visible to the naked eye. Through a backyard telescope it and its smaller companion M32 are quite visible.
You did know ants can fly, didn't you?
If you are referring to Challenger, it became engulfed in flame 74 seconds into flight. The intact crew cabin smashed into the ocean 164 seconds later. I wouldn't call that immediately.
What are the chances evaporated resin and hardener are going to condense on nearby objects like camera lenses? And it won't be easy to bake the stuff off either.
From TFA: "On its journey, the Stardust also spent 195 days collecting particles flowing through the solar system from stars far out in space. Scientists said there appeared to be hundreds of samples of these particles."
Ahemmm.... A little sanity check is in order here. The trace "large enough to put a small finger through" was in aerogel, a material so thin it is 99.8% empty space.
The Oh-my-god particle had an energy of 3.2 x 10^20 eV, whereas RHIC can only get particles up to 10^11 eV/nucleon (~ 2 x 10^13 eV for gold). For 4.55 billion years Nature has been performing experiments at least 10 million times more energetic than anything we can do without catastrophe.