יוסף ויתקין
היום לפני 100 שנה נפטר יוסף ויתקין, מחלוצי עלייה ראשונה, מורה ומחנך, ומי שכתב את הקול הקורא שנחשב לאחד ממחוללי העליה השניה. יהי זכרו ברוך.
Some science stories for March - Einstein's week, a few items regarding energy, and more
A few of the scientific news stories we saw on the web in the last month: 10-year project reaches a success: scientists finally understand how the salinosporamide A 'warhead' is created. This may very well be used to handle other cancers, as well as deseases of the immunity system and parasytic infections. "Intranasal delivery of biologically active lipid messengers halts memory loss and neurodegeneration in mouse models of Alzheimer’s disease." Respecting Einstein's week: let us talk a little about Einstein Rings As the unusual cold weather bout continues an interesting article (in hebrew) explains why it is so cold: in short, the reasons for what is perhaps the coldest march ever registered in Insrael, is a high pressure system in Europe which stopped air flows from Scandinavia and the North Pole towards Europe and instead, directed them towards the middle east. One has to wonder how a coldest month registry in this warming globe of ours going to impac
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