Tiny Helix

We're all mad here.
www.mermaidtavern.net

sagansense:

child-of-thecosmos:

Radio and television broadcasting may be only a brief passing phase in our technological development. When we imagine alien civilizations broadcasting signals with radio telescopes, are we any different from earlier generations who imagined riding cannon shells to the moon? Civilizations even slightly more advanced than ours may have already moved on to some other mode of communication, one that we have yet to discover or even imagine. Their messages could be swirling all around us at this very moment, but we lack the means to perceive them just as all of our ancestors, up to a little more than a century ago, would have been oblivious to the most urgent radio signal from another world. 

But there’s another more troubling possibility: Civilizations, like other living things, may only live so long before perishing due to natural causes, or violence, or self-inflicted wounds. Whether or not we ever make contact with intelligent alien life may depend on a critical question: What is the life expectancy of a civilization?

- Episode 11: The Immortals, Cosmos: A SpaceTime Odyssey

Recommended reading:

Everything you need to know about this book can be found in this wonderfully thorough review by Astrobiology Magazine from 2003.

I plan on doing a full writeup/review about this book; however, I can tell you it’s one of the best Carl’s ever written and is still heavily referenced by scientists across multiple fields regarding the search for extraterrestrial life, be it intelligent or otherwise. A review on the book and the study of astrobiology itself can be via a PDF by Charley Lineweaver of the Planetary Science Institute at the Research School of Astronomy and Astrophysics and the Research School of Earth Sciences.

The most fascinating aspect of this book is that it was originally written by I.S. Shklovskii in Russian, re-translated into English, whereby Carl adds his scientific “two-cents”, expanding on subjects and explaining further in a way only Carl, himself, can. For instance, the last paragraph in Chapter 31: Interstellar contact by automatic probe vehicles:

At this point in the Russian edition of the present work, Shklovskii expresses his belief that civilizations are not inevitably doomed to self-destruction, despite his description of contemporary Western literature as filled with details of atomic holocaust. He expresses his belief that as long as capitalism exists on Earth, a violent end to intelligent life on the planet is probable. There is reason to assume, he asserts, that future peaceful societies will be constructed on the basis of Communism. I am able to imagine alternative scenarios for the future. No one today lives in a society which closely resembles Adam Smith capitalism or Karl Marx communism. The political dichotomies of the twentieth century may seem to our remote descendants no more exhaustive of the range of possibilities for the entire future of mankind than do, for us, the alternatives of the European religious wars of the sixteenth and seventeenth centuries. As Shklovskii says, the forces of peace in the world are great. Mankind is not likely to destroy itself. There is too much left to do.

Also recommended:

SETI Scientist Jill Tarter provided a beautiful TED Talk about this subject, and in this interview with NOVA, she speaks on being the inspiration for Carl Sagan and Ann Druyan’s book/film ‘Contact’ whereby Jodie Foster portrays Dr. Tarter.

Seth Shostak, Senior Astronomer for SETI, presented an enriching TED Talk about why he’s convinced we’re closer than ever in detecting, contacting, or receiving signals from ETI; and recently, had a Q&A conversation with Science 2.0 appropriately titled “Why I Believe We’ll Find Aliens.”

…stay curious.

(via jtotheizzoe)

Prison Culture » Erasing Fannie Lou and Other Black Women Victimized By Police…

dopegirlfresh:


Another man/boy shot (not again). Unarmed (his black skin is weaponized). Killed by cops (since slavery). The terrible ever-expanding litany of names: Amadou, Sean, Oscar, Rodney, Trayvon, Michael… We’re on a first name basis (excruciatingly familiar). Collective mourning and grief ensue (my tear ducts are dried out; there’s only rage). Calls for justice in the black community (justice is prosecution and prison). #BlackLivesMatter on a social media loop (numbing). We are trying to convince ourselves that it’s true (we don’t fully believe it). Please make it true (it’s a symbolic prayer).

In the background, a faint sound (a whisper). Aiyanna, Tyisha, Renisha, Rekia (background noise). Woman/girls shot (do they shoot black girls & women?). Unarmed (her skin is a bullet magnet). Killed by cops (since slavery). They are not household names (excruciatingly unfamiliar). A few people mourn (silently). Some calls for justice (more prosecutions and prison). #BlackLivesMatter? (But which ones?)

You’re so selfish. This isn’t the right time, the voice intones. Is that voice in my head? I can’t tell. There never seems to be a ‘right’ time to remember the names of murdered black women (never). Sadness and grief threaten to overwhelm (so tired). Stubbornly I remember (an act of defiance).

In 1999, Tyisha Miller was on her way to a party with her cousin when her car got a flat tire. They pulled into a gas station in downtown Riverside, California. Her cousin went to get help and left Tyisha who had been drinking alone in the car. Miller apparently passed out with the doors locked. She had a handgun on her lap.
A few minutes later, four Riverside police officers (all of them white) who had been called to the scene tried to wake Tyisha to no avail.

They smashed the driver’s side window and chaos ensued. At least one of the cops thought that he saw Tyisha reach for her gun. The officers fired 27 shots into the car and Miller was hit 12 times. She died.

Black people are always reaching for guns…

In the mugshot photo, Fannie Lou Hamer has her arms up in the universal surrender pose (or is it universal?).

fannielou

The photo circulates on social media. Re-purposed and remixed for a new generation to memorialize a 21st century police execution. The sampled track of a new freedom song. “Hands Up, Don’t Shoot!” the protesters chant.

Fannie Lou stares back at us from behind the lens (hands up, don’t shoot?). What percentage of people who see the mugshot (without the explanatory text) know of Mrs. Hamer, let alone her abuse by police? (15%).

The monster is insatiable and needs to be constantly fed. More images from black struggle, more trafficking in black death (blackness is property; we don’t belong to ourselves). Hungry for more… to consume and exploit. Black suffering erased again. Fannie Lou’s suffering invisible and (un)felt. Mrs. Hamer warned us: “A black woman’s body was never hers alone.” Our bodies are common property still; no boundaries bound to be respected. The cause is bigger than individual pain (right?).

Tell us what happened to you in Winona, Mrs. Hamer? (can the dead talk?). Danielle McGuire tells the story:

After being arrested with other Student Nonviolent Coordinating Committee (SNCC) activists for desegregating a restaurant, Hamer received a savage and sexually abusive beating by the Winona police. “You bitch,” one officer yelled, “we going to make you wish you was dead.” He ordered two black inmates to beat Hamer with “a long wide blackjack,” while other patrolmen battered “her head and other parts of her body.” As they assaulted her, Hamer felt them repeatedly “pull my dress over my head and try to feel under my clothes.” She attempted to pull her dress down during the brutal attack in order to “preserve some respectability through the horror and disgrace.” Hamer told this story on national television at the Democratic National Convention in 1964 and continued to tell it “until the day she died,” offering her testimony of the sexual and racial injustice of segregation.’”(p.910)

Some say that you purposely underplayed the sexual violence associated with the beating that you received in jail, Mrs Hamer (were you ashamed? you did nothing wrong). Black women are also victims of police violence. The beat goes on. Is it the right time to bring this up yet?

Travelling by resonance

neurosciencestuff:

How nerve cells within the brain communicate with each other over long distances has puzzled scientists for decades. The way networks of neurons connect and how individual cells react to incoming pulses in principle makes communication over large distances impossible. Scientists from Germany and…

(Source: pr.uni-freiburg.de)

radio23:

Joanna Newsom “Sprout and The Bean” ::: From LP/CD “The Milk-Eyed Mender”. Directed by Terri Timely (aka Corey Creasey & Ian Kibbey)

futurist-foresight:

What a superbly innovative thermoelectric powered torch!
futuretechreport:

15 Year Old Canadian Invents Flashlight Powered by Your Hand
Another reason to be proud to be Canadian today!
treehugger:

Portable light sources have been one of the most evolving inventions in history — from the primative torches and oil lamps of yesteryear, to today’s battery-powered flashlights and headlamps. But through it all, most of these illuminating tools have required an outside energy source that would deplete when needed the most.
But now, thanks to one particularly enlightened 15-year-old girl from Canada, your next flashlight just might be powered by the heat from your hand. Introducing, the thermoelectric ‘Hollow Flashlight’ — submitted for the Google Science Fair.
— Teenager invents a flashlight powered by the heat from your hand

futurist-foresight:

What a superbly innovative thermoelectric powered torch!

futuretechreport:

15 Year Old Canadian Invents Flashlight Powered by Your Hand

Another reason to be proud to be Canadian today!

treehugger:

Portable light sources have been one of the most evolving inventions in history — from the primative torches and oil lamps of yesteryear, to today’s battery-powered flashlights and headlamps. But through it all, most of these illuminating tools have required an outside energy source that would deplete when needed the most.

But now, thanks to one particularly enlightened 15-year-old girl from Canada, your next flashlight just might be powered by the heat from your hand. Introducing, the thermoelectric ‘Hollow Flashlight’ — submitted for the Google Science Fair.

Teenager invents a flashlight powered by the heat from your hand

(via redmagus77)