Oct 30 2009

inessen​tial​.com: Vaccines

inessen​tial​.com: Vaccines


Oct 30 2009

Fall Colors 2009

One good thing about liv­ing in the Rochester area is that Fall is espe­cially lovely. Here are some recent pho­tos of the season.

Fall Barn

45120007

85580001

PIled Up

Dew

MG 8665


Oct 30 2009

Fear of fairness?

What is so scary about net­work neu­tral­ity that Repub­li­cans in the House and Sen­ate have pro­posed bills to kill it?


Oct 30 2009

Internet pops champagne on (second) 40th birthday • The Register

Inter­net pops cham­pagne on (sec­ond) 40th birth­day • The Register


Oct 30 2009

How Terahertz Waves Tear Apart DNA

Ter­a­hertz waves occupy the elec­tro­mag­netic spec­trum between microwaves and infrared light. They can “see” through non-conducting mate­ri­als such as clothes , paper, wood and brick, allow­ing cam­eras to look inside things like envelopes, walls and even cloth­ing. There’s hope that they might be used to find can­cer­ous tumors near the skin’s sur­face. Scan­ners using them are appear­ing the UK for air­port secu­rity, claim­ing to be effec­tive but less intru­sive than other meth­ods. But there are still seri­ous ques­tions about their safety.

Now researchers at Los Alamos have an idea what effect ter­a­hertz waves have: they cause res­o­nant effects that allow THz waves to unzip double-stranded DNA, cre­at­ing bub­bles in the dou­ble strand that could sig­nif­i­cantly inter­fere with processes such as gene expres­sion and DNA repli­ca­tion. Yes, you should be wor­ried. Although THz energy occurs nat­u­rally in the envi­ron­ment, no one knows what will hap­pen when our bod­ies are bom­barded with them in scan­ners and the like. At present there are no expo­sure limit rec­om­men­da­tions as there are with other kinds of elec­tro­mag­netic radi­a­tion. There needs to be, and soon, espe­cially if their use becomes more widespread.


Oct 29 2009

Motorola DROID first hands-on! (update: video, impressions, more pics)

Motorola DROID first hands-on! (update: video, impres­sions, more pics)