A method to detect small cracks in a metal or homogeneous material in a non-destructive way by means of natural frequencies was first proposed by Adams et al (1978). He proposed that the crack size and location on a bar specimen could be found using natural frequencies of free vibration ignoring the natural modes all together. reference www.aeroway.ca

Gadget blog GearCrave, in their "first of a series 'Dream Job' Interviews," has a great back-and-forth with International Space Station astronaut and all-around-good-guy Clayton Anderson.

Aircraft delays due to FAA mandated inspections. More to come?
Reactive or proactive.

I tagged this with every category since I review books in all realms of science.

Though I plan to maintain my Science Shelf archive of book reviews, I will now also publish the reviews on Science Blog.

There’s a strange wave phenomenon that’s plagued rocket scientists for years, a lurking threat with the power to destroy an engine at almost any time. For decades, scientists have had a limited understanding of how or why it happens because they could not replicate or investigate the problem under controlled laboratory conditions.

For those of you have have been wondering about whether ScienceDebate2008, the latest news is that it has morphed into a different but still viable form.

It won't take place in PA, but it may take place on PBS.

Click for the latest message from the organizers

The National Science Foundation awards around 900 graduate fellowships each year to a wide variety of sciences, including everything from linguistics and mathematics to physics. These fellowships are a big deal, being both very hard to get and making a significant impact on the finances of the awardees.

So which universities get the most?

Have a gadget in your house that you like? If you were to trace its genealogy, you shouldn't be surprised if you found out that NASA is its grandpa.

A rebuilt Apollo Moon lander returning to the Moon?

I got this from the folks at ScienceDebate2008 and I'm passing it along.