Progressive Homeschool
Welcome! We practice science-intensive evidence-based education.

Growing and drawing

Monday, June 18, 2007
Garden Project: 6-14-07 panorama

Garden Project: mesclun

Garden Project:  fruit fly

Recently, we have been doing a lot of learning through our new garden.

You can read all about that at Humble Garden.

We have also been doing art. Q continues with her dragon artwork.

Another dragon

Kitty-dragon detail


KD is now pitching in with drawings of family members and today, of a bus.

KD's drawing of a bus

10:50 AM :: 7 comments

nika :: permalink

Sci-casts: Zeptoliters and tiny tiny bits of fluid

Friday, April 20, 2007
What do you call 10,000 atoms of liquid?

Try a Zeptoliter

Liter and its subclasses

(sourced from Wikipedia)

This table shows you how we label various volumes of fluid using the metric system.

Recently, we have been listening to podcasts of all sorts (got a new computer that has the ability to play the multimedia we need, before we were deaf to the podcast world!)

A podcast, lasting 60 seconds, that talks about the way scientists can dispense a zeptoliter of fluid can be found at the Scientific American podcast site.

"Using what is thought to be the world's smallest pipette, two researchers at the U.S. Department of Energy's Brookhaven National Laboratory have shown that tiny droplets of liquid metal freeze much differently than their larger counterparts. This study, focused on droplets just a billionth of a trillionth of a liter in size, is published in the April 15, 2007, online edition of Nature Materials." SOURCE

"Our findings could advance the understanding of the freezing process, or ‘crystallization,' in many areas of nature and technology," said Eli Sutter, a scientist at Brookhaven's Center for Functional Nanomaterials (CFN) and the lead author of the study." SOURCE

Zeptoliter from nanowire for blogging

There are many more 60 second scientific podcasts there for you to explore.

Here is a list of other science podcasts, have fun!

Parents - preview them to be sure they are ok with you.

Science podcast directory
This week in science
Science Friday
NYT - Science Times
The Guardian
Berkeley groks science (go Heinlein!)

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8:44 AM :: 1 comments

nika :: permalink