Page 57 - Particle News Today

Worlds dirtiest source of energy. both in its emission of carbon dioxide and particle pollutants. thanks in large part to our reduced dependency on coal, u.s. co2 emissions hit an 18-year low in 2012. u.s. emissions fell over the last five years by more than all of europes did. so, and this is the first hitch, environmentalists have to understand that whatever our dreams and fantasies, natural gas is in reality producing a dramatic reduction in carbon emissions. but now the second hitch. why is ...

Investigators began digging for evidence. as work of the massive crime scene got under way, bostons police commissioner stood resolute. >> we will turn every rock over the find the people who are responsible for this. >> the criminal investigation pushed ahead painstaking work, searching for each piece of a confusing puzzle. the components of two bombs scattered across the streets for blocks. each particle would need to be found, cataloged, collected. 27 hours after the blasts, these crime scene...

Investigators began digging for evidence. as work of the massive crime scene got under way, bostons police commissioner stood resolute. >> we will turn every rock over to find who is responsible for this. >> the criminal investigation pushed ahead painstaking work, the components of two bombs scattered across the streets for blocks. each particle would need to be found, cataloged, collected. 27 hours after the blasts, these crime scene photos began circulating showing pieces of the bomb, a parti...

Struggled to save lives, investigators began digging for evidence. as work of the massive crime scene got under way, bostons police commissioner stood resolute. >> we will turn every rock over to find who is responsible for this. >> the criminal investigation pushed ahead painstaking work, the components of two bombs scattered across the streets for blocks. each particle would need to be found, cataloged, collected. 27 hours after the blasts, these crime scene photos began circulating showing pi...

Investigators began digging for evidence. as work of the massive crime scene got under way, bostons police commissioner stood resolute. >> we will turn every rock over to find who is responsible for this. >> the criminal investigation pushed ahead painstaking work, the components of two bombs scattered across the streets for blocks. each particle would need to be found, cataloged, collected. 27 hours after the blasts, these crime scene photos began circulating showing pieces of the bomb, a parti...

Is a good one. "this explains everything." deep, beautiful, elegant theories of how the world works. john brockman asks some of the worlds best minds for their favorite explanations of anything. the result is a collection that reads like the best ted talks ever. its an absolute pleasure to read. now, for the last look. good signs sometimes takes a very long time. it was 11 years after nasa was founded that we landed on the moon. the human genome project took 13 years. its been almost 50 years si...

>> thank you. martha: so what is dark matter and why do we care if we figure out what it is? >> dark matter nobody knows. thats why it is cool. its actually probably flying through this room at this very moment. flying through our body but just passing in between spaces in@toms, not even hitting us. it is this big mystery. we think it makes up 25% of the universe but we really dont know what it is. scientists think this is one of the most fundamental mysteries of our universe and they want to ge...

Martha: were learning about a brand new cool discovery that could unlock some of the secrets of that outer outer space area we dont know so much about. scientists think they may have identified a new particle that may be the building block of dark matter. dark matter is that mysterious deep, dark substance out there believed to make up 25% of the universe. a lot of it, okay? so this discovery was made with a $2 billion particle physics detector. bet you have one of those at home. it was mounted ...

Im not a physicist. what is that on the chart? >> this is one of the towering accomplishments of history. this is inventory of what the universe is made of. 1,000 years from now, they are going to believe in that pie chart. well hopefully know better what the ingredients are. we have ordinary matter that is you and me and planets and sun and moon and stars. dark matter is some kind of matter, some kind of particle but its just invisible. its transparent. we cant see it. we never made it in the l...

Government. >> a tech exec, live in dallas, left his job to work for the revolution. >> what folks in beijing have to cope with. over the past couple of weeks, not the fpicture that china wans the world to see. >> the capital city lost in a haze of grit and pollution and on really, really bad days, which there have been many, its a problem that makes residents gasp. >> youve seen the photographs of people going down the street in beijing with face masks. thats one of the first things people have...