The original cluster was the Year 4 group which was set up by the St Neots Schools Forum to support teachers with their understanding of expectations for writing following the removal of Levels. The Year 6 clusters were set up following my experiences in as an LA adviser and moderator.
Support Aeon Donate now My history with bubble universes began in when I met Robert Kirshner while we were both undergraduates at Harvard in Massachusetts. He was a lively, funny, interesting fellow. We met up again a few years later, when he was a graduate student at Caltech in California and I was a new postdoc there.
At Caltech, he had a piece of good luck that changed the direction of his career and, ultimately, helped reshape modern cosmology.
While he was at Caltech, a bright supernova an exploding star ending its life became visible, and Kirshner was able to study it using the huge inch-diameter Hale telescope on Palomar Mountain. Combining his findings with some innovative contemporary methods, he developed a clever way to measure its distance.
The distance scale of the Universe was poorly known at the time, and getting more accurate numbers was critical to developing a better understanding of cosmic structure and evolution.
Astronomers presumed that the expansion had been slowing down ever since the Big Bang, running down due to the gravitational pull between galaxies. The big question was: To get an answer, Kirshner and his team measured distances to supernovae near and far away, and compared those distances with their velocities of recession.
In essence, they were using supernovae as standard lampposts of known intrinsic luminosity, whose distance you could ascertain from their apparent brightness.
Then you could look at how much that light had been stretched shifted toward the red end of the spectrum by cosmic expansion, and compare the rate of expansion for supernovae of different distances.
Because of the finite velocity of light, the farther out we look, the farther back in time we see. If we look out at a distance of 65 million light-years, we would be seeing a supernova that exploded 65 million years ago, when ancient dinosaurs still roamed the Earth. Kirshner was looking back hundreds of millions or even billions of years.
A competing team formed at Berkeley in California to perform the same kinds of measurements, using similar techniques. Then things got strange.
The two groups found that the expansion of the Universe is not slowing down at all, but speeding up!
The supernova data indicated that there was something different and unaccounted for in the make-up of our Universe. Those results also suggested something strange about cosmic geometry: The explanation for the accelerating cosmic expansion, surprising as it was at first, was readily available from the theoretical toolbox of physicists.
It traced back to an idea from Albert Einstein, called the cosmological constant. Einstein invented it inas part of a failed attempt to produce a static Universe based on his general theory of relativity. At that time, the data seemed to support such a model.To begin to cluster, choose a word that is central to the assignment.
For example, if a writer were writing a paper about the value of a college education, they might choose the word "expectations" and write that word in the middle of the sheet of paper. We have graphic organizers for reading, science, writing, math, and for general classroom use. You'll also find blank printable templates like graph paper, dot arrays, and other useful tools.
Popular Graphic Organizer Collections. Cluster diagram is a type of graphic organizer. You can write your main idea in the center circle and details in the smaller circles.
Add subtopics as needed.
Nov 17, · Argumentative essay help custom essay writing service professays custom essay service toronto write. The following is a comprehensive list of essay questions that have been asked on past ap the rate of photosynthesis may vary with changes that occur in.
This is a ashio-midori.com mind map. A mind map is a graphical representation of ideas and concepts. It's a visual thinking tool for structuring information, helping you to better . An essay isn’t a scantron that you have to correctly bubble in or risk some computer incorrectly grading you.
You can’t just play eenie miney moe and hope for the best. Writing is personal.