Twitter updates

Monday, April 27, 2009

Pressure

Videos about pressure and atmospheric pressure

Wednesday, April 22, 2009

Earth Day

A tribute to our planet from YouTube

Wednesday, April 15, 2009

Global Warming


70% reduction of gas emissions enough to save Arctic 

"A 70% reduction in emissions of greenhouse gases, especially CO2, during this century would be enough to save the Arctic ice and prevent the most disastrous consequences of climate change. This is the conclusion of a scientific study published today in Washington, which will be published in next week's edition of the journal Geophysical Research Letters. " 

in SIC


--- versão portuguesa:

Redução de 70% das emissões de gases bastaria para salvar Árctico

"Uma redução de 70% das emissões de gases com efeito de estufa, sobretudo de CO2, durante este século bastaria para salvar os gelos do Árctico e evitar as consequências mais desastrosas das alterações climáticas. Esta é a conclusão de um estudo científico hoje divulgado em Washington, que será publicado na edição da próxima semana da revista Geophysical Research Letters."


in SIC



--- versión española:


70% de reducción de las emisiones de gas suficiente para salvar el Ártico 

"Un 70% de reducción de las emisiones de gases de efecto invernadero, especialmente CO2, en este siglo sería suficiente para salvar el hielo ártico y evitar las más desastrosas consecuencias del cambio climático. Esta es la conclusión de un estudio científico publicado hoy en Washington, que se publicará la próxima semana en la edición de la revista Geophysical Research Letters. " 

in SIC

Wednesday, April 08, 2009

News from SciAm




Some articles to read:

Monday, April 06, 2009

The Physics of Baseball



Interesting web page about baseball. The relationship between this sport and physics is more real than it seems.

Topics:
  • The Effect of Spin on the Flight of a Baseball
  • The effect of spin decay on the flight of a baseball
  • Scattering of a Baseball by a Bat
  • The Physics of the Trampoline Effect in Baseball and Softball Bats
  • How to Hit Home Runs: Optimum Baseball Bat Swing Parameters for Maximum Range Trajectories
  • Vibrational Analysis
  • A Study of Softball Player Swing Speed
  • Wood Versus Aluminum Bats.
Website by Alan Nathan

José Gonçalves' shared items