25 Apr '15, 5pm

Is dark matter about to be discovered? | EDN via @edncom

Is dark matter about to be discovered? | EDN via @edncom

evidence that dark matter exists is pretty simple: the visible mass of galaxies is too small to account for how tightly gravity holds them together. In other words, if the visible mass is all there is, then galaxies should be flying apart much faster than they do. The obvious solution: there must be some invisible matter whose mass holds galaxies together through its gravitational attraction. The difference between the white and red curves shows the discrepancy between the measured attraction of galaxy components and that calculated from the gravitational attraction of visible objects. Source: Phys.org Another remedy would be to modify Newton’s law of gravity and some smart people who understand the nuances of the problem have modifications ready to roll , but Newton’s venerable law has survived too many experimental probes to be tossed aside so quickly. An essential tenet...

Full article: http://www.edn.com/electronics-blogs/measure-of-things/44...

Tweets

Dark matter lights up in new high-resolution maps

Dark matter lights up in new high-resolution maps

mnn.com 15 Apr '15, 4pm

BALTIMORE — In the universe, dark and light tend to cluster together, according to new maps that chart the location of dar...

#EarthDay

#EarthDay

grist.org 22 Apr '15, 9am

For most Americans, Earth Day is probably something you vaguely remember from elementary school. You may have sat through ...

Why Rails 5 / Turbolinks 3.0 / Action Cable mat...

rubyflow.com 22 Apr '15, 10pm

× The Ruby and Rails community linklog Made a library? Written a blog post? Found a useful tutorial? Share it with the Rub...

Does URL Structure Even Matter? A Data Driven A...

searchenginejournal.com 28 Apr '15, 2pm

URLs ranked in the top 10 results on average contained 37 characters. URLs ranked in the top 20 results on average contain...