Shape of the earth, top 10 reasons

by | Friday, June 21, 2013

I have written previously about determining the shape of the earth… for instance, here is a post on seeing the shape of the earth using eclipses. (A somewhat similar effect could be seen in my photo of the moon during a lunar eclipse). On the web, I found another way of computing the shape of the earth through studying the turbulent wake of a ship. And then there was the post about reconciling the shape of the earth with the maps or projections we typically use (such as the mercator projection).

I was thus glad to find the following video:  Top 10 reasons why we know the Earth is round

Topics related to this post: Learning | Representation | Science | Teaching | Worth Reading

A few randomly selected blog posts…

Technology integration, looking forward to the past

Tom Johnson's Adventures in Pencil Integration is the smartest, sassiest blog I have come across in a long time. This is how the sidebar describes the blog/author. The year is 1897 and Tom Johnson works for a small school district. This is the story of the journey to...

Designing learning futures through reflective practice: 1 of 2

Designing learning futures through reflective practice: 1 of 2

This is the first of two posts on the topic of bringing principled innovation practices to designing learning futures. The first post (co-authored by Punya Mishra & Cristy Guleserian) focuses on the need for designing learning futures, and how the PI practices...

Mastery=unconscious (contd.)

Robin Revette Fowler sent me a message on Facebook regarding my recent posting(s) about moving from incompetence to mastery (see the two previous posts here and here). She took issue with my idea that mastery requires some kind of meta-level, self-awareness. She said...

Ideas are cool

My colleague and friend David Wong has this cool idea, about making ideas cool. Actually, he has been espousing these ideas for a while now (check out his scholarly publications, in particular The Rebirth of Cool [Word doc]). But now this academic has stepped out of...

Education in a pandemic: A crisis & opportunity

Education in a pandemic: A crisis & opportunity

Last year I was in Israel to present at the Meital Conference. When I was there I was interviewed by Lior Detal, the education correspondent for TheMarker - which led to an article in the magazine. Earlier this year, once the COVID crisis was in full swing, I was...

The degradation of Matt

A rumination on goofy sketches, the perils of reproduction as it plays out in a children's game, a B-list Hollywood movie, and botany textbooks I read when in high school, all leading up to some thoughts on the history of scientific illustration. If this sounds even...

Unpacking Design & Creativity @ Purdue

The presentation Unpacking Design and creativity: What I think I know, and what I (quite certainly) don't is done, and it went well (I think). You can read the abstract here or view the presentation below Or see it full screen, by clicking here. After the presentation...

Media, Cognition & Society through History:  A Mapping

Media, Cognition & Society through History: A Mapping

If oral cultures prioritize memory and print cultures emphasize systematic organization, what types of knowledge will AI systems foster? Marie Heath and I wrote this line in a chapter that is currently in press. But the idea underlying this quote has been with me for...

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