Peter Hill Explains

#CosmosMagazine Reading an article on sports science. Podcast

Well I just let similar thoughts work themselves out. After the Podcast I find that this year they cracked the Inca Knot code Crispr stands for Clustered, regularly, interspaced, short, palandromic, repeats. which relates to how ancient cells (alive to day) use self gene editing in the wild. Great fun Podcast

I was troubled by the Bee Movie, and this also troubles me.... Bees having emotions, It is not the bees I am worried about.  I am moving to a new form of Podcasting where I do the science after the story, but I am not there yet. Podcast

I just started to Podcast about brain cells and it naturally came out that we focus on neurons much as we focus on the band members at a gig. I used ACDC, but I also used teaching with your hand to explore the Podcast media.  It could be fun to listen to. Podcast

#CosmosMagazine article about hijacking brain cells with a virus, that then trigger light sensitive genes to pump out activation hormones so you can trigger memories with an optical fibre. I find it interesting if you get your mind into it. Podcast

Finally this is the content taught on the year before the final year "Year 11".  I just think suvat is not the best as it misses the opportunity to teach subscripts and subsubscripts and more, and also uses up cognitive load in rote learning rather than functional recall. The use of a vector equation for friction is a problem but many sources on the internet muck up this fundamental thing. This is acceptable as the symbols are placed as vector labels, N is a reserved symbol for normal force.  Some problems here though, with the scale and positioning of the vectors. Obviously mg sin(theta) should be smaller than mg, but also the negative value is problematic when combined with the sense of the vector. In a body diagram all vectors act from the COM which is the centre of rotation. You are allowed to translate the vectors for clarity of the diagram but you should use a dashed extension line through the COM. As drawn this shows a anticlockwise torque. Also strictly speaking you should not use redundant or non real forces on the body diagram. Using Australian convention only there should be a <==== double resultant vector where the mgsin(theta) on is drawn labeled  mg sin (theta) - mu N. All seems small change really, but... it is the clarity necessary for learning. Podcast

More syllabus - for Australian ears only.  Reading aloud really shows the repeated information, which I suppose is necessary if people are just ... no I don't fully understand just now. Lots of birds and wind in the background. Podcast

Really for Australian ears only.  What a grind! Podcast

Really for Australian ears only. I am grinding through the syllabus as I may have to teach it on return. The history of it and the ideas flowing into it is quite interesting (to me). It does sound odd if you read it all aloud. Podcast

I go through the Period Table, Blocks, and look at ionization energy and electron affinity. There are basic insights that ions in salts aren't as ionized as a plasma, and thus take less energy to make than the high bar of ionization energy.  We also look at the mind bending reality of double anions like oxygen double minus. Podcast