Feature Stories

Professor Predicts Human Time Travel This Century

Professor Predicts Human Time Travel This Century

Physics /

created Apr 04, 2006 | popularity 3.9 / 5 (1375) | comments 66

With a brilliant idea and equations based on Einstein’s relativity theories, Ronald Mallett from the University of Connecticut has devised an experiment to observe a time traveling neutron in a circulating ...


Water forms floating 'bridge' when exposed to high voltage

Water forms floating 'bridge' when exposed to high voltage

Physics / General Physics

created Sep 28, 2007 | popularity 4.6 / 5 (667) | comments 0

While it's one of the most important and abundant chemical compounds on Earth, water is still a puzzle to scientists. Much research has been done to uncover the structure of water beyond the H2O scale, whi ...


Mercedes Hyper concept cutaway showing major components

Hybrid Cars -- Pros and Cons

Technology / Energy

created Jan 19, 2006 | popularity 3.6 / 5 (778) | comments 1

If you listen to the makers, hybrid cars are the best invention since sliced bread. While there are many reasons to buy a hybrid car, including a new tax incentive for US owners, it helps to have a good understanding ...


Mathematician suggests extra dimensions are time-like

Mathematician suggests extra dimensions are time-like

Physics / General Physics

created Apr 17, 2007 | popularity 4.5 / 5 (552) | comments 1

In a recent study, mathematician George Sparling of the University of Pittsburgh examines a fundamental question pondered since the time of Pythagoras, and still vexing scientists today: what is the nature ...


Solar Cell

40% efficient solar cells to be used for solar electricity

Technology / Energy

created Jun 01, 2007 | popularity 4.6 / 5 (456) | comments 0

Scientists from Spectrolab, Inc., a subsidiary of Boeing, have recently published their research on the fabrication of solar cells that surpass the 40% efficiency milestone—the highest efficiency achieved ...


A 3D-object displayed using a 3D-image spatial drawing device

Japanese Device Uses Laser Plasma to Display 3D Images in the Air

Physics /

created Feb 27, 2006 | popularity 4.3 / 5 (453) | comments 3

A collaboration of the Japanese National Institute of Advanced Industrial Science and Technology (AIST), Keio University and Burton Inc. has produced a device to display "real 3D images" consisting of dot arrays ...


For Better Nanowires, Just Add Diamond

Nanotechnology / Nanomaterials

created Nov 15, 2006 | popularity 4.2 / 5 (434) | comments 0

Among the positive characteristics of diamond, such as its beauty and unsurpassed hardness, are less well known properties that make it a valuable material in the electronics industry. Now, according to two scientists at ...


Why a hydrogen economy doesn't make sense

Why a hydrogen economy doesn't make sense

Technology / Energy

created Dec 11, 2006 | popularity 4.2 / 5 (435) | comments 13

In a recent study, fuel cell expert Ulf Bossel explains that a hydrogen economy is a wasteful economy. The large amount of energy required to isolate hydrogen from natural compounds (water, natural gas, biomass), ...


Numbers follow a surprising law of digits, and scientists can’t explain why

Numbers follow a surprising law of digits, and scientists can't explain why

Physics / General Physics

created May 10, 2007 | popularity 4.2 / 5 (306) | comments 3

Does your house address start with a 1? According to a strange mathematical law, about 1/3 of house numbers have 1 as their first digit. The same holds true for many other areas that have almost nothing in ...


Before the Big Bang: A Twin Universe?

Before the Big Bang: A Twin Universe?

Physics / General Physics

created Apr 09, 2008 | popularity 4.3 / 5 (279) | comments 33

Until very recently, asking what happened at or before the Big Bang was considered by physicists to be a religious question. General relativity theory just doesn’t go there – at T=0, it spews out zeros, infinities, ...


Dark Energy and Dark Matter – The Results of Flawed Physics?

Dark Energy and Dark Matter – The Results of Flawed Physics?

Physics / General Physics

created Sep 11, 2006 | popularity 4.6 / 5 (239) | comments 5

There are few scientific concepts as intriguing and mysterious as dark energy and dark matter, said to make up as much as 95 percent of all the energy and matter in the universe. And even though scientists ...


Image source: Scientific American Quarterly – Special Edition

Interstellar Spaceflight: Is It Possible?

Space & Earth /

created Dec 07, 2005 | popularity 3.3 / 5 (295) | comments 1

With current space travel limited to just a few robotic probes visiting nearby planets, how realistic is it to think about reaching the nearest stars? For the short term, not very – especially when we speak ...


Predicting stock market crashes (Fig 1)

Physicists Predict Stock Market Crashes

Physics /

created Feb 24, 2006 | popularity 4 / 5 (221) | comments 0

On Monday, October 19, 1987 – infamously known as “black Monday” – the Dow fell 508 points, or 22.9%, marking the largest crash in history. Using an analytical approach similar to the one applied to explore ...


Professor proposes theory of unparticle physics

Professor proposes theory of unparticle physics

Physics / General Physics

created Jun 11, 2007 | popularity 4.4 / 5 (198) | comments 0

Howard Georgi, a physicist at Harvard University, has recently published a paper on so-called unparticle physics, which suggests the existence of “unparticle stuff” that cannot be accounted for by the standard ...


Study of 'Solitons' Adds Insight into Nanomagnet Behavior

Study of 'Solitons' Adds Insight into Nanomagnet Behavior

Nanotechnology /

created Feb 02, 2006 | popularity 4.3 / 5 (203) | comments 0

Scientists are a long way off from a complete understanding of the interactions and behaviors that govern nanomagnets — magnets on the scale of a billionth of a meter. However, a groundbreaking new study helps ...