The so-called Doppler effect

Satellite tracked Malaysia plane in ‘unprecedented’ way writes: In its further detective work, Inmarsat studied the so-called Doppler effect, the name for what makes the noise from an approaching vehicle sound different from one speeding away from a listener. Right up there with the so-called gravity effect and so-called wind resistance effect that ultimately brought the plane down. Read more →

Follow Saturday from #l21conf

Here is a list of great people to follow from Learn 21 Conference March 12, 2014: @bob05 Bob Green Technology coordinator, hockey player, coach and referee. Homepage @chamady Chris Hamady PhD candidate (ABD) at the Univ. of Toledo in Curr. & Instruction, Dir. of Technology Anthony Wayne schools, ADE, Ed. Tech, Musician, Lifelong Learner, Runner Homepage @CherylLKemper Cheryl Kemper High… Read more →

Title: Dear Google, You Should Have Talked to Me First [Link]

Dear Google, You Should Have Talked to Me First writes: It’s a sad commentary on the state of education in the U.S. when a move like this is praised. To say I’m disappointed that Google views education through such a narrow lens is an understatement. For a company that has been built on innovation to invest millions into a program… Read more →

Beaver Local waiver day #bltlap

On Wednesday I had the distinct pleasure of attending Beaver Local’s professional development waiver day. It was a twofer for me, I not only got a chance to see how they ran their waiver day PD, but I also had the chance to present and converse with the staff in the district. This was invaluable to me, and I was… Read more →

Gamification in education research

How to effectively use Civ IV in higher education | Ars Technica writes: Lots of games, from dedicated educational titles to adult brain-teasers, make claims about how they can improve someone’s mental performance in various ways. But there’s often little evidence available to back up these claims and, in many cases, the evidence itself is ambiguous. Can playing games actually… Read more →

IRC for teachers #tlah

Since the website at talk.eduk8.me just isn’t up to everyone’s standards on using IRC for group chats I’ve put together a brief tutorial on installing a Chrome app that works a lot better than the website. It is also prettier. πŸ™‚ (I also stumbled acrossed Tiny Tiny IRC tonight, but the install is a little more involved, so this will… Read more →

How does water instantly freeze in a water bottle?

In our garage we have some bottled water. With the colder weather I’ve witnessed an interesting phenomenon. When I bring a water bottle into the house, it is entirely liquid, but as soon as I shake it, it fills with slush. Apparently, it’s a process called supercooling. The water temperature is brought below the freezing point, and all it takes… Read more →