Is that a bathtub in your kitchen?

Making a supersonic jet in your kitchen

When scientists speak of a “jet” they are usually referring to a fast flowing column of material, typically air or water. These jets range from the mundane, like water rushing out of a hose, to the exotic, such as the relativistic plasma jets that beam out from quasars or monster black holes. A turbo-jet, for example, pushes an aircraft forward using the supersonic thrust of air that streams ou...

Is that a fly in your leg?

Hariharan isolated in a screen for cell growth mutants. Mitotic recombination in fly eyes rendered possible mutations homozygous. Then Hariharan’s group (four postdocs working for two years) looked for mutant patches that grew larger than the corresponding wild-type patch. “One of the lessons is that there are many pathways that we know nothing about,” says Hariharan. “That’s why we did a pheno...

Why Believe That There Is a God?

This article presents an argument for the existence of God, showing that the evident phenomena are best explained by supposing that a God causes them. The argument is based on the inductive force of four very evident general phenomena: that there is a physical Universe; that it is governed by very simple natural laws; that those laws are such as to lead to the existence of human bodies; and tha...

Has your kitchen been safety checked?

Is That Your Final Answer?

The purpose of this research is to test the efficacy of applying automated evaluation techniques, originally devised for the evaluation of human language learners, to the output of machine translation (MT) systems. We believe that these evaluation techniques will provide information about both the human language learning process, the translation process and the development of machine translatio...