'The Meek Shall Inherit The Earth … The Rest Of Us Are Going To The Stars!'
David has been featured on Regional TV stations in NSW, Good Morning America, American MSNBC news, the BBC, Spa
segunda-feira, 2 de maio de 2011
David Reneke
The Dance of the Planets
The Dance of the PlanetsThe Dance of the Planetsby Dave Reneke
Artistic representation of the early morning sky for early May 2011 showing the planets forming a rare conjunction. Credit: Dave Reneke
Sydney, Australia (SPX) May 02, 2011
What's in the night skythis week? Glad you asked! There's plenty but first, armed with your binoculars, find a nice dark place away from the glare of the street lights. Pick a comfy spot and wait about 5-10 minutes to allow your eyes to adapt to the darkness. See that band of stars stretching across the sky from one side to the other? That's the Milky
Geomagnetic Storm Light Show at Both Poles
Geomagnetic Storm Light Show at Both Polesby Staff Writers
Aurora Australis (Southern Lights). May 1st, 2011. Credit: NASA/J. Dana Hrubes
Greenbelt MD (NASA) May 03, 2011
April 30: A solar wind stream that hit Earth's magnetic field during the weekend sent Northern Lights spilling over the Canadian border into the continental USA. "Magnificent May Day auroras lit up the night sky over Chippewa Falls, Wisconsin, on May 1st and into the wee morning hours of May 2nd," reports Tony Wilder.Southern Lights: The solar wind impact sparked auroras over both ends of the planet. "After a slow start to the aurora observing season, we are finally getting some beautiful Aurora Australis here at the geographic South Pole (90 degrees S. latitude)," reports J. Dana Hrubes, science leader at the Amundsen-Scott Station. He took the picture above at the peak of the geomagnetic storm on May 1st. At this location the sun set on March 23rd and will not rise again until six months later.
Mulher consegue na justiça o direito de se masturbar no trabalho | TCHOCO-TCHOCO
Ana Catarina Bezerra Silvares, 36 anos, divorciada, mãe de 3 filhos, analista contábil, possui uma doença que a difere das demais mulheres de seu ambiente de trabalho. Ela possui compulsão orgástica que é fruto de uma alteração química em seu córtex cerebral. Esta alteração a leva a uma constante busca por orgasmos que aliviem sua ansiedade.
Designers coreanos criam óculos de sol que captam energia solar
Designers coreanos criam óculos de sol que captam energia solar
Quem poderia imaginar que usar óculos escuros poderia ser muito mais do que proteger os olhos contra os raios solares. Uma tecnologia desenvolvida por uma dupla coreana os transformou em carregador para dispositivos portáteis.
Os óculos de Sol “Self-Energy Converting (SIG)" criado pelos designers Hyun-Joong Kim e o colega Kwang-Seok Jeong é um conjunto de quebra-luz que consegue captar a energia solar e transformá-la em eletricidade.
Usá-los em dias ensolarados significa que, além de proteger seus olhos dos raios de sol, ele também poderá ser usado para a produção de energia a partir de uma fonte inesgotável. Esta eletricidade, por sua vez poderá ser usada para carregar iPods, celulares e outros pequenos dispositivos.
Os óculos têm lentes que são equipadas com um corante orgânico barato, que faz uso da nanotecnologia e, portanto, são capazes de transformar raios solares nocivos que caem em suas superfícies em eletricidade utilizável.
Casamento real emite quase sete mil toneladas de gás carbônico
Casamento real emite quase sete mil toneladas de gás carbônico
Na última semana os olhos do mundo se voltaram para o tão esperado casamento real. A festa foi repleta de glamour, que resultaram em toneladas de carbonos emitidos na atmosfera, mas também foi marcada por alguns itens ecologicamente corretos escolhidos pelos noivos.
Conforme o site Tree Hugger a sustentabilidade esteve presente em parte dos preparativos da festa. O primeiro deles foi o anel, com o qual o Príncipe Willian selou a união com Kate Middleton. O adereço escolhido foi o mesmo usado por sua mãe, a Lady Di, quando foi pedida em casamento pelo Príncipe Charles. Essa escolha impediu que novos recursos minerais fossem usados para fabricar um novo anel.
Brazil: Drilling the Extra Mile in Soft Formations, Schlumberger
Brazil: Drilling the Extra Mile in Soft FormationsIn deep water offshore Brazil, drilling relatively simple well profiles in soft shales and marls is difficult. The introduction of PowerDrive rotary steerable system (RSS) technology for deepwater development wells has trimmed an average of two rig days per 12 1/4-in. hole section and one rig day per 8 1/2-in. hole section.In the Voador field, Petrobras drilled a pilot hole to establish reservoir boundaries. A sidetrack hole optimizes heavy-oil production from the well. The PowerDrive Xtra tool drilled the 84° inclined section of the 7-VD-10HP-RJS sidetrack hole with maximum build angle of 6.5°/30 m [6.5°/100 ft] into the target formation as planned. Instantaneous rate of penetration (ROP) was as high as 75 m/h [246 ft/h]. The average ROP using PowerDrive Xtra technology was 35 to 40 m/h [115 to 131 ft/h], twice the rate of a steerable motor in offset wells. The RSS sustained longer bit runs and better directional control than a motor because the friction of the motor limits ROP and decreases directional control. This type of drilling success in a soft formation requires more than downhole tools. In this case, using the PERFORM Performance Through Risk Management Process, the wellsite engineers closely monitored drilling parameters, cuttings morphology, real-time torque and drag, and equivalent circulating density. The PERFORM process ensured good hole cleaning and detection of wellbore-stability problems.[ note 15 ] Logging-while-drilling (LWD) images acquired during the trip out of the hole were downloaded at surface. When compared with images acquired at different times, for example, during drilling, these time-lapse images confirmed wellbore-stability problems in the shales, problems first indicated by the cuttings morphology and increasing drag. The PERFORM process helped engineers determine that the mud weight was too low and that hole cleaning was suboptimal. The well was drilled successfully to total depth (TD) by managing both these parameters while drilling.
Related resources
|