Dopamine Jackpot! Robert Sapolsky on the Science of Pleasure

Robert Sapol­sky, Pro­fes­sor of Biol­o­gy at Stan­ford Uni­ver­si­ty, famous­ly focus­es his research on stress above all else. (Don’t miss his book, Why Zebras Don’t Get Ulcers.) The video above fea­tures Sapol­sky pre­sent­ing the Pritzk­er Lec­ture at the Cal­i­for­nia Acad­e­my of Sci­ences on Feb­ru­ary 15, 2011. The full lec­ture can be seen here. In this excerpt, Sapol­sky amus­ing­ly tells the audi­ence how mon­keys and humans com­mon­ly gen­er­ate the high­est lev­els of dopamine when plea­sure is antic­i­pat­ed, not when plea­sure is actu­al­ly expe­ri­enced. But humans, as opposed to mon­keys, can “keep those dopamine lev­els up for decades and decades wait­ing for the reward.” And for some, Sapol­sky adds, that per­ceived reward lies beyond this life – in the after­life. (Sapol­sky was raised in an ortho­dox Jew­ish fam­i­ly, but is an athe­ist now.) The Stan­ford pro­fes­sor talks about sim­i­lar issues (what sep­a­rates us from pri­mates) in anoth­er cap­ti­vat­ing talk, “What makes us human?

By pro­fes­sion, Matthias Rasch­er teach­es Eng­lish and His­to­ry at a High School in north­ern Bavaria, Ger­many. In his free time he scours the web for good links and posts the best finds on Twit­ter.

Visualizing WiFi Signals with Light

Have you ever won­dered what the WiFi sig­nal looks like around your office, school, or local café? In this video, Timo ArnallJørn Knut­sen, and Einar Sneve Mar­t­i­nussen show you the invis­i­ble. And they pulled this off by build­ing a WiFi mea­sur­ing rod, mea­sur­ing four meters in length, that can visu­al­ize WiFi sig­nals around Oslo, Nor­way with the help of long expo­sure pho­tog­ra­phy.

What’s fas­ci­nat­ing to see is how the WiFi sig­nals vary across the city. Away from res­i­den­tial build­ings, the drop-off in WiFi strength is steep. On the oth­er hand, the WiFi sig­nal is dense around com­mer­cial and aca­d­e­m­ic build­ings. The amaz­ing visu­al­iza­tion gives us a glimpse into the com­plex rela­tion­ships between WiFi net­works and the phys­i­cal envi­ron­ments under­pin­ning them. For a deep­er read about this project, see this blog post.

Eugene Buchko is a blog­ger and pho­tog­ra­ph­er liv­ing in Atlanta, GA. He main­tains a pho­to­blog, Eru­dite Expres­sions, and writes about what he reads on his read­ing blog.

NASA Captures Giant Solar Storm

Last Thurs­day, the sun deliv­ered the goods, unleash­ing a beau­ti­ful solar flare. The erup­tions last­ed some­where around 90 min­utes, and the plas­ma flares were all cap­tured in high def by NASA’s Solar Dynam­ics Obser­va­to­ry, a project ded­i­cat­ed to study­ing the sun and its impact on space weath­er. This footage comes soon after anoth­er ground­break­ing NASA video – the First 360 Degree View of the Sun.

via Pop­u­lar Sci­ence

by | Permalink | Make a Comment ( 3 ) |

NASA Zooms into Spiral Galaxy

Cour­tesy of NASA’s Hub­ble Space Tele­scope, we’re zoom­ing into a “majes­tic disk of stars and dust lanes” and get­ting a stun­ning view of the spi­ral galaxy NGC 2841, which lies 46 mil­lion light-years away in the con­stel­la­tion of Ursa Major (The Great Bear). But wait, it gets even bet­ter. This high res­o­lu­tion still pho­to shows the spi­ral galaxy in all its beau­ty and splen­dor…

by | Permalink | Make a Comment ( 2 ) |

Evolution Made Us All

File under Every­thing is a Remix. Ben Hill­man offers a cre­ative lit­tle riff on “All Things Bright and Beau­ti­ful” (lis­ten here), an Angli­can hymn inspired by William Paley’s 1802 trea­tise, Nat­ur­al The­ol­o­gy, which posi­tions God as the design­er of the nat­ur­al world … in an Enlight­en­ment kind of way. You can catch more Hill­man videos on Vimeo here.

via RichardDawkins.net

First 360 Degree View of the Sun

A new NASA break­through lets us see the sun in a 360 degree, panoram­ic view. The upshot? Bet­ter space weath­er reports com­ing our way. The video from NASA’s YouTube chan­nel has all the good details …

by | Permalink | Make a Comment ( 5 ) |

Wunderkind Fun

Only 2 years old, ‘lil Rose from Seat­tle aces her Peri­od­ic Table of Ele­ments game. Next up, a play date with 3 year old Jonathan who con­ducts the 4th move­ment of Beethoven’s 5th for laughs, and anoth­er pal, Samuel, who recites the poet­ry of Bil­ly Collins and Lord Alfred Ten­nyson. I’m feel­ing a lit­tle bet­ter about our future…

via Boing­Bo­ing

by | Permalink | Make a Comment ( 1 ) |

The World’s Fastest Solar Car

Some con­grat­u­la­tions are in order for a team of stu­dents from The Uni­ver­si­ty of New South Wales. Ear­li­er this month, they set a world record for the fastest solar-pow­ered car. Their car, trav­el­ing 88km/h (or 54 miles per hour), broke the pre­vi­ous record of 79 km/h. We’re not talk­ing about NASCAR speeds, to be sure. But the research that went into mak­ing the UNSW car could mean big things for future gen­er­a­tions of green-pow­ered cars. Wired has more on the sto­ry, plus some pho­tos…

by | Permalink | Make a Comment ( 2 ) |

« Go BackMore in this category... »
Quantcast