TR EMERITUS

Do you feel cheated? Pfizer, Moderna, and Johnson&Johnson have all found evidence that suggests their vaccines continue to provide substantial protection for up to six months, but there's still a question of what happens after that. Now, Pfizer is saying immunity may wane over time in the face of the more infectious Delta... 

Then God said: 'Let there be Light ...'  [LINK] The recent debate on India-Singapore Comprehensive Economic Cooperation Agreement (CECA) is very confusing.  The confusion started with Progress Singapore Party (PSP) accepting a challenge to debate on the merits CECA. For those who want to have an unbiased background understanding... 

I tried to explain the concept of “control” in a science experiment to a P6 class today, but it is incredibly counter-intuitive and difficult to grasp. The aim of the experiment is to ascertain if leaves absorb water. So, we have a complete plant, ie, with roots, stem and leaves, with the roots immersed in a beaker of water....