It is no a secret that the past 50 years have seen a tremendous leap and bounds in technologies and (mega) construction. Although everyone is excited about it, this also raises the question, whereto? The idea that out of the thousand years humans have been in this world, only the past half a century has seen an unparalleled spring in materialism (humanism has deplorably spiraled down, perhaps this shows a reversed correlation?). Using Google Earth Engine Timelapse, I have captured how my hometown, Tripoli, Lebanon, has transformed (amorphously) in the past 32 years (1984 – 2016). Timelapse is a global, zoomable video that lets you see how the Earth has changed over the past 32 years. It is made from 33 cloud-free annual mosaics, one for each year from 1984 to 2016. Using Earth Engine, we combined over 5 million satellite images acquired over the past three decades by 5 different satellites. The majority of the images come from Landsat, a joint USGS/NASA Earth observation program that has observed the Earth since the 1970s. Here’s the video
Based on screenshot images, you can notice how a massive shift in construction, and destruction of green areas, has taken place at key years, specifically between 2010 and 2016. If 32 years have done that damage to our world, and have drastically increased urban density, imagine the world in the next 30 years. Would you wish your children to live in such a place?






Hattie’s meta-mata analysis that culminated in the publication of his most influential work of Visible Learning (2009), and later updated to include more studies, has been hailed as the “holy grail” for educators and education leaders around the world. In particular, his effect size of instructional practice interventions has had the lion’s share of his work. Hattie considered that if schools set the effect size at 0 then “virtually everything works, and so we need to shift the question from “ what works in education” to “what works best in education”. Hattie’s meta-meta analysis of more than 800 meta-analyses studies comprising 50,000 studies (later included more 1500 meta-analyses) revealed that the baseline of the effect size that schools should start from is not 0 but 0.4, termed as the “hinge point”. In other words, for medium to large effect sizes on student achievement, the effect size of an instructional practice should be o.4 and above. This does not mean that we n...
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