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Still Think That Cellphones Could Make Popcorn Dance?

Still Think That Cellphones Could Make Popcorn Dance?

DANCE, POPCORN, DANCE!!!! Buwa-ha-ha-ha!!!

We were talking about the Sun and radiation today in Science and one of the students mentioned how radiation or microwaves from cellphones made some popcorn pop. It was a good lesson on being careful about what you see on the internet and thinking scientifically. Scientists actually studied the case of the popping popcorn and debunked the video after proving scientifically that it could not happen.

Oh well, apparently it is not meant to be. I will have to put my cellphone and the popcorn away for another day! Check this article out!

Physicist Debunks Cellphone Popcorn Viral Videos

By Jenna Wortham EmailJune 09, 2008 | 5:37:20 PMCategories: Advertising, Video, Viral, Web/Tech

YouTube videos that show a group of friends apparently cooking kernels of popcorn with their cellphones have been viewed more than a million times since they were uploaded last week.

The clever parlor trick (see embedded clip) looks amazing enough, but there’s a hitch: It’s not physically possible, according to University of Virginia physics professor Louis Bloomfield.

“[The videos] are cute,” said Bloomfield in a phone conversation Monday. “But that’s never gonna happen.”

In a microwave oven, energy excites the water inside popcorn kernels until it turns into highly pressurized gas, causing the kernels to pop. If mobile phones emitted that much energy, the water in the fingers of people holding them would heat up.

“It would hurt like crazy,” Bloomfield said. “Cellphones probably warm your tissues, but studies indicate that’s not injurious.”

Bloomfield, author of How Everything Works: Making Physics Out of the Ordinary, dismissed theories bubbling up in comment threads about the videos that suggest harmonious vibrations are heating the corn.

“Ringing the phones doesn’t help because they’re interfering with each other and receiving a signal [from a cellphone tower] — not transmitting it,” he said. Furthermore, while it is possible to heat with sound, it’s not likely to happen at the low volume emitted by a mobile phone. “It would be like gathering opera singers together to sing, and trying to make the corn pop,” Bloomfield said.

So, what’s really causing the kernels to ricochet off the table in the YouTube clips? Bloomfield suggests tricky video editing or even a covert heating element beneath the table. Debunker website Snopes.com also points out that cooking popcorn with cellphones is impossible (same goes for eggs).

The popcorn videos, like the slew of YouTube clips showcasing ordinary people performing extraordinary feats that came before them, has the distinct markings of a viral-marketing campaign. Let’s look at the facts.

First, all four videos — French, Japanese and two American editions — were posted to the YouTube accounts of usersĀ  bobtel08 and benzin513 (with French descriptions) within several days of one another.

Second, a cryptic bit of commentary posted alongside one of the videos says: “We tried but didn’t make it … maybe only with phone brands or models???” It could be a subtle hint to get viewers to notice the phones more than the stunt. And, indeed, several comments have suggested the phones all appear to be similar makes and models, possibly Nokias or Sony Ericsson mobiles.

For now, however, the clandestine origin of the videos is under wraps. Bobtel08, benzin513 and Nokia did not immediately respond to Wired.com’s requests for comment, and a representative from Sony Ericsson North America said he wasn’t aware of the videos at all.

Why Did We Need Parents and Cellphones?

Why Did We Need Parents and Cellphones?

We saw this video today and could not believe what it was showing. So, having learned that all good scientists “question, discuss and check each other’s explanations”, we decided to try it out for ourselves. This has been a big theme this year; working as real scientists. it also really reinforced the idea that not everything on the internet should be believed! Many students think that everything on the web is real without checking the facts. So that is what we did at the end of the day today. We got some parent helpers to come and lend us their phones and tried it out. First though, the students wrote out the whole experiment including their hypothesis before doing the experiment as a written record of what we had done. Here is the video that we saw in preparation for the experiment.

Needless to say, when we tried it in the classroom, the experiment did not work. One of my students made the bright observation that we never see under the table and he thought that they could have a heating element underneath warming the table and heating the popcorn. Anyway, it was at the very least, a lot of fun and the students really got the message. However, I think they were disappointed that the popcorn did not pop!!!

Landing on Mars

Landing on Mars

Devotion:

O give thanks to the Lord, for he is good, for his steadfast love endures forever. Oh give thanks to the God of gods, for his steadfast love endures forever. Oh give thanks to the Lord of lords, for his steadfast love endures forever. Psalm 136:1-3

All the students were very excited this morning to tell me the news about the new Mars craft landing on the surface of Mars. Called the Mars Polar Lander this spacecraft is different from the previous machines as it does not move. Instead it will stay in one spot and do research on whether there is water there and whether there is any kind of life. There is lot of information on their website at Phoenix Mars Mission. Here are some of the videos.

If you go to these sites, you can download some images and make your own animotos. We will then put them on the blog if they turn out. Part of their homework tonight is to think of a question to ask the scientists.

We also previewed a new game which is very addicting, challenging and takes a great deal of logic and brains. There are some ads on the site though so please do not click on the ads. The game is called Magic Pen.

The rest of the day went very well. We are continuing with our poetry unit. However, we are just reading some poems now. Today we read a Robert Louis Stevenson poem about going to bed in summer. The students were really able to relate to the poem. We also had a look at the first 10 spelling words for the week. Here are the spelling words:

Read this doc on Scribd: 0-4
Prince Caspian Cometh!!!

Prince Caspian Cometh!!!

I am very excited to see the new Narnia movie. From the previews it looks like it is going to be very exciting!!!! I loved the first movie and have seen it over and over. Incidentally, the first movie was on tv this weekend. How many of you have seen it? Did you like it? Answer our poll question down below and see what others thought.

I thought I would include a couple of videos about the upcoming Prince Caspian movie.

We’re Back in Business!

We’re Back in Business!

Devotion:

Beloved, let us love one another, because love is from God; everyone who loves is born of God and knows God. (1 John 4:7)


It’s almost the end of the week and that means that it was a crazy Thursday with music, library and gym all happening on the same day. I have also replaced all the widgets on the blog. I decided to try a different book service as nothing seemed to be happening with the other one and, as you can see, it works though it is not as spiffy as the other one. Ah well! I also thought I would start adding the devotions that we do as a class to our blog so you can discuss them with your child as part of your evening devotions if you wish.The students’ “Colour Poems” are coming along beautifully. There are some truly beautiful and creative poems being written and I am very impressed with their ideas and the way they are stringing them together. As I mentioned in the newsletter, one of the changes I have seen in the class has been in the freedom they feel to be creative. I think that is plainly evident in their poetry with all the beautiful language and imagery being used.On a completely different note – Did you know that the Earth hums? Apparently scientists have noticed this for a long time.

“The planet emanates a constant rumble far below the limits of human hearing, even when the ground isn’t shaking from an earthquake. (It does not cause the ringing in the ear linked with tinnitus.) This sound, first discovered a decade ago, is one that only scientific instruments – seismometers – can detect. Researchers call it Earth’s hum.

Investigators suspect this murmur could originate from the churning ocean, or perhaps the roiling atmosphere.”

Here is a video we watched awhile ago on the size of planets compared to each other and other stars. It’s quite amazing.

[kml_flashembed movie="http://www.youtube.com/v/k7hsQA3wo3Q" width="425" height="350" wmode="transparent" /]

Here’s something to check though. Are those numbers correct? Can they be compared with other sources? Which shouldn’t always take things for granted just because they are on t.v. or on the internet!

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