Ascension Earth 2012
- Here's Why Tesla's Battery Is A Big Deal
- The Mystery Blue Blob
- Getting Over a Broken Heart
- Rare Quartet of Quasars Found in the Early Universe
- Take an amazing spaceship journey to Omega Centauri
- Have you ever seen an atom?
- Why is the Solar System Flat?
- Did Scientists Invent A Better Way To Take Drugs?
- Could We Live On Jupiter?
- Longest Bigfoot Trackway ~ 3000 Steps ~ Minnesota
Posted: 14 May 2015 06:14 PM PDT
Excerpt from forbes.com
It’s more about where the market and product are going than where they are today. Think about a complementary system of components:
What all of this adds up to is that home battery storage isn’t economical today, but it’s viable for a subset of the high-consuming market, it’s desirable for its green credentials, it’s desirable due to the hype factor and it will defray its costs. And that the home storage market tomorrow will be viable for a much larger percentage of the market with increasing systemic pressures and pricing that will make it more attractive. Tesla’s home storage battery is getting attention because they are staking a major claim to a market which is expected to increase dramatically.
Why is Tesla’s battery a big deal?: originally appeared on Quora:
Answer by Mike Barnard, Energy guy, on Quora
Posted: 14 May 2015 06:05 PM PDT
Posted: 14 May 2015 06:00 PM PDT
Posted: 14 May 2015 05:51 PM PDT
Excerpt from smithsonian.com
The odds of success would make a Vegas bookie sit up and take notice. But in a one-in-10 million chance, astronomers surveying the sky have found a group of four tightly packed quasars in one of the most distant parts of the universe. The rare grouping may be a nascent galaxy cluster, and its unusually cold cradle of gas could prompt a re-think of how we model the early universe.
The quasar phase doesn't last long, only about a thousandth of a galaxy's lifetime. After that, the brightness dies down as the inflow of matter slows, says study leader Joseph Hennawi, an astrophysicist at the Max Planck Institute in Germany. Seeing any two quasars close together while they are still bright is a chancy business, so his team wasn't sure what they'd find when they set out to survey quasars using the W.M. Keck Observatory in Hawaii. To their surprise, they quickly pinpointed four of them in close proximity, cosmically speaking. The quartet is huddled up in an area of sky less than 600,000 light-years across that sits about 10 billion light-years from Earth.
That's not all that was strange about this quasar quartet. The foursome was found inside a cloud of cold, dark gas, and the team's observations suggest that similar clouds surround about 10 percent of the tens of thousands of known quasars. That's odd, because according to current theories, quasars in groups like this should be surrounded by hot plasma, or ionized gas, at a temperature of about 10 million degrees.
“What this means is that there is some physical process that the models aren’t capturing,” says Hennawi, whose team reports the discovery this week in Science.
Posted: 14 May 2015 05:41 PM PDT
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