Even those of us whose whose biochemistry is a little shaky are likely to know that there are twenty amino acids that form the building blocks of proteins in life on earth. Now even that simple factoid is no longer absolutely true. A group of scientists headed by Peter G. Schultz of the Scripps Research Institute have created a new form of E.
We all know that, with the deciphering of the human genome as well as those of other animals, and of plants, that the future will bring a new level of understanding and control of our own heredity. But what can the present level of genetic testing provide? In this story, writer David Duncan has as much determined about his future as you can learn with current technology.
Barry Commoner argues that the central "dogma" of genetic engineering, that DNA alone controls protein synthesis in a one-to-one correspondence between genes and proteins, is highly questionable.
Sue Hubbell has written beautifully about her experiences as a beekeeper in rural Missouri. For example, I recommend her "Broadsides from the Other Orders and "A Country Year".
As a physical chemist, I was amazed when it was discovered that the diatomic free radical, nitric oxide (NO) was intimately involved in the transmission of neurological information in mammals. Now a group led by Barry Trimmer at Tufts University has demonstrated that it is the key that turns on bioluminescence in fireflies.
As humankind grabs control of its own genes, as well as those of the animals and plants with which we share Earth, a plethora of ethical questions must be faced - ignoring them for the time being does not mean they are avoided.
Did you know that the so-called "Spanish" influenza epidemic of 1918 killed more Americans in three months than the number who died in the First World War, the Second World War, the Korean War, and the Vietnam War - combined? Most people don't.
Bernd Heinrich is one of my favorite writers about nature, and especially insects. I discovered his "Bumblebee Economics" (Harvard University Press paperback) a number of years ago, and used it in a course for non-science majors that I taught in our Honors College.
The "river" to which Dawkins refers in the title of this little (172 page) book is the river of digital genetic information that connects us to our human ancestors and to the rest of life on our planet. I find this metaphor to be an extremely provocative one, and I suspect that it would appeal to many of our computer-addicted students.
In the social sciences, 1995 may turn out to be (the figures aren't available yet) the year in which as many women earned Ph.D. degrees as men did. But in the physical sciences, the ratio is still about four to one.
