Another Strike Against Light-Speed Neutrinos

A team of physicists from Tel Aviv University says that faster-than-light neutrinos would violate the principle of the conservation of energy in addition to Einstein's special relativity.

What's the Latest Development?


A team of physicists from Israel's Tel Aviv University says the neutrinos which were reported to have traveled faster than light speed last September could not have done so without violating the principle of the conservation of energy. That is because "the rules for inheriting energy treat slow-moving particles differently from those moving close to the speed of light. If the neutrinos did begin their lives moving faster than light, then their slower muon siblings should have gotten the lion's share of their parents' energy." 

What's the Big Idea?

This latest objection to the OPERA experiment in Gran Sasso, Italy, which originally reported on the faster-than-light-speed neutrinos, adds to the list of theoretical objections to the results. "The most popular so far claims that if the particles ever broke the speed of light, they would quickly radiate away their energy and slow down." OPERA team member Luca Stanco, who did not sign his team's original results over concerns they were too preliminary, is asking for an urgent verification of the study.

Photo credit: shutterstock.com

Hashtag politics: 4 key ways digital activism is inegalitarian

Many believe that the internet has made it easier for us to participate in political activism. But is that really true?

Videos
  • Protesting in person is costly in terms of money and resources; some people have children to take care of, jobs that can't be away from, or may not have time to attend a planning event.
  • The internet was supposed to be a way to sidestep this barrier to political activism. But this doesn't consider the other barriers preventing poor and working-class folks from participating in digital activism.
  • In particular, these people lack ASETs: access to computers, the skills to use them, the empowerment necessary to feel that using Twitter or other social media is for them, and the time to make use of digital platforms in an effective way.
Keep reading Show less

The 5 most intelligent video games and why you should play them

Some games are just for fun, others are for thought provoking statements on life, the universe, and everything.

(Photo from Flickr)
Culture & Religion
  • Video games are often dismissed as fun distractions, but some of them dive into deep issues.
  • Through their interactive play elements, these games approach big issues intelligently and leave you both entertained and enlightened.
  • These five games are certainly not the only games that cover these topics or do so well, but are a great starting point for somebody who wants to play something thought provoking.
Keep reading Show less

The Danish shoot down Trump's plan to buy Greenland, call the idea 'absurd'

The bid to buy Greenland is unlikely to become seriously considered.

Politics & Current Affairs
  • Greenland and Danish officials alike think the idea is ridiculous.
  • The island is an autonomous state, and it's unlikely the Danish would sell it because of yearly subsidies costs.
  • After hearing the Danish Prime Minister call the idea absurd, Trump cancelled their forthcoming meeting.
Keep reading Show less