Category Archives: Waves

Strings + A Capella = “Bohemian Gravity”?

Bohemian Gravity: "Any way you quantize, you encounter infinity."Describing The World Dynamics So Far

According to the current understanding of Physics, there is as yet no uniform field theory.  No all-encompassing well-rounded theory that would enable all the known fundamental forces and elementary particles to fit neatly into one simple model, and to be expressed in terms of a single field.

And since there is no accepted unified field theory, it remains an open line of research.  Canadian graduate student Timothy Blais decided to explore the idea and promote his findings in a way that really rocks…  ♫  Continue reading Strings + A Capella = “Bohemian Gravity”?

IPCC 2013 Stockholm – Latest Findings on Climate Change

A photograph showing the bright Sun shining over the Chukchi Sea. The planet's far northern and southern latitudes are projected to experience the greatest change under increasing global temperatures - and in many cases they already are. Image: Chris Linder, Woods Hole Oceanographic Institution

The IPCC 2013 Report

The Intergovernmental Panel on Climate Change (IPCC) has just released its latest summary of the science behind human-caused climate change or, to use its catchy official title, the IPCC Working Group 1 Fifth Assessment Report Summary for Policy Makers – Climate Change 2013: The Physical Science Basis.

The document summary is 36 pages long.  The report includes 14 chapters and a dizzying amount of graphs, data and figures.  Here are just a few…  Continue reading IPCC 2013 Stockholm – Latest Findings on Climate Change

Colour Perception and Retinal Neurons – Attempting to Map the Human Brain

A close-up photograph showing a brown eye. Image: NaturPhilosophieColour Perception – The Eye of the Beholder

Seeing the World in glorious colours is central to our lives.  Colours shape the way we behave.  They affect our mood and our perception.  They can influence the way we interact and respond to social and environmental stimuli, whether we are directly aware of it, or through subliminal awareness of our external world.  Again, it is one of those things that most people take for granted in everyday life.

Colour perception is all subjective.  Colours only exist when three components are present: a viewer, an object, and lightContinue reading Colour Perception and Retinal Neurons – Attempting to Map the Human Brain

The Art and Science of Music Acoustics – From the Humble Flute to the Mighty Didgeridoo (Featuring Tarzan…)

A photograph featuring an aboriginal didgeridoo player sitting on the beach with his instrument.Fundamentals of Music Acoustics

Any signal that may be represented as an amplitude varying over time has a corresponding frequency spectrum.  This applies to concepts (and natural phenomena) that most human beings encounter daily, without giving them a second thought.  Such as visible light (and colour perception), radio/TV channels, wireless communications…  Even the regular rotation of the Earth.  Even the sound of music… Continue reading The Art and Science of Music Acoustics – From the Humble Flute to the Mighty Didgeridoo (Featuring Tarzan…)

What do Physicists do anyway?

Air Apparent

Over 50,000 deaths each year in the UK are attributed to air pollution.  Physicist, entrepreneur and father Mark Richards is concerned about the environment and in particular the air pollution that we expose our children to.  He has developed a handy machine which can monitor air quality.  He wants people to see how bad air pollution is, so that we all think more carefully about our lifestyles and travel methods.

Continue reading What do Physicists do anyway?

The Moser Bottle Lamp: ‘Divine Light’

A close-up photograph of Alfredo Moser in the light of the bottle lamp - his makeshift invention.Sun Light in a Bottle

“God gave the Sun to everyone”, Alfredo Moser states modestly.  And Moser gave his light to everyone.  Over the last couple of years, Moser’s ingenious innovation has spread throughout the World, bringing the bottle lamps to locations from Brazil to the Philippines and Bangladesh.  By early next year, it is estimated that one million homes will have benefited from his simple idea…  Continue reading The Moser Bottle Lamp: ‘Divine Light’

Why the Universe may be Inherently Unstable

"The Cosmic Soup": An impressionist artist's view of the Cosmic Microwave Background (CMB) Radiation at the edge of our Local Universe. Artwork:: NaturPhilosophie

Exploring Vacuum Instability

Scientists are currently exploring the concept of vacuum instability.  What does this mean?  Well, they believe there is a chance that…  Billions of years from now, a new universe could open up into the present one and replace it.  It all depends on some very precise numbers related to the Higgs boson particle that researchers are currently trying to pin down.

If the calculation on vacuum instability holds, it would revive the old idea that the ‘Big Bang’ Universe we can observe today, is merely the latest version in a permanent cycle of events…  Continue reading Why the Universe may be Inherently Unstable

Secrets of the Bubble Chamber

A picture collage showing the Gargamelle bubble chamber and the Smurfs archvillain sorcerer, Gargamelle.What Do Gargamelle and Picasso Have in Common?

Nope.  Nothing to do with the arch-nemesis of the Smurfs or with an avant-garde artistic masterpiece, unlike the top picture appears to suggest…  Actually, the Gargamelle on the left is at CERN and takes its name after the giantess in the works of satirist François Rabelais: she was Gargantua’s mother!  The Gargamelle is a historical ‘bubble chamber’ detector however… Continue reading Secrets of the Bubble Chamber

60-Second Hilarious Adventures in Astronomy

A slide picture from 60 seconds in Astronomy, showing English astronomer on holiday. Image: The Open University12 Short Videos about the Physics of the Cosmos

The Open University has teamed up with “geek chic” comedian David Mitchell to release a series of 12 short animated YouTube videos about the Physics of the Cosmos: “60-Second Adventures in Astronomy”.  A real treat.  And it’s educational!  If you have only 60 seconds, you can now learn everything we know about matter, energy, life, the Universe and everything…

Continue reading 60-Second Hilarious Adventures in Astronomy

Rainbows, Rainbows Everywhere!

A photograph showing a rainbow over Glasgow Southside in 2004. Image: NaturPhilosophieRainbows: Technicolor Symphonies in the Sky

Rainbows are one of Nature’s most gorgeous optical spectacles to behold, brightening up clouded skies with an ephemeral palette of colours when the light falls just right…  Continue reading Rainbows, Rainbows Everywhere!

Lightning and the Earth’s Electric Field

A photograph showing some spectacular lightning bolts above a city skyline at night.Earth’s Electric Field

The Earth has an electric field.  On average, this field points vertically downwards and it has a magnitude of about 100 N C-1 (Newtons per Coulomb).  It exists because the Earth’s surface carries a negative charge of – 5 x 10C, while the upper atmosphere carries a compensating positive charge.  An average of 400,000 thunderstorms a day  Continue reading Lightning and the Earth’s Electric Field

Let There Be Light…

A photograph showing the sun reflecting over the waters at Loch Kathrine through a curtain of trees. Low sun. Image: NaturPhilosophieFiat Lux…

Light.  Most of us take it for granted during the day.  And at night, we have learned to domesticate it.  Light, the natural agent that stimulates our sense of sight and makes things around us visible.  Continue reading Let There Be Light…