Dark Matter

Sometimes I think that we understand drugs as much as we think we know the space just by seen the stars from the balcony of an apartment in the central park of New York at 8:00 PM (on a summer day).


There are many unpublished clinical trials that we know nothing except for their registry on a public database (e.g., ClinicalTrials.gov). That’s something like the stars we cannot see from the balcony, but we know that these stars are there, probably we can see that stars if we were outside of the city. Now, let’s change the subject:

what about unpublished and unregistered clinical trials?

That’s probably something that we understand even less than the astronomers doing research on the dark matter. There is evidence of that somewhere?

Oh yes, agomelatine: http://www.bmj.com/content/348/bmj.g1888/rr/762419

More evidence is out there, the problem is that databases of drug studies are huge, and not enough people doing research on the frauds of medical research.

Author: ESO/IDA/Danish 1.5 m/R. Gendler and J.-E. Ovaldsen

Sombrero Galaxy (Andromeda) Author: ESO/IDA/Danish 1.5 m/R. Gendler and J.-E. Ovaldsen


The Science Geek

This post is about dark matter and is the latest in my series on cosmology, the study of the origin and evolution of the Universe as a whole. As readers of my previous posts will recall, dark matter makes up about 27% per cent of the mass of the Universe.

Dark energy  now

Evidence for dark matter

Our solar system contains the Sun, eight planets with their moons and various minor bodies such as dwarf planets, comets and asteroids. If we plot the speed that each planet orbits the Sun against its distance from the Sun, then we get the curve shown below.

Planets speed

The graph above shows the speed at which the planets orbit the Sun in kilometres per second, plotted against their distance from the Sun in astronomical units (AUs). 1 AU is just under 150 million km and is the average distance between the Earth and the Sun.

The way that the speed of the planets’ orbits falls off with…

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