06 July 2010

Hooke's masterpiece: Micrographia (National Library of Medicine, National Institutes of Health)

Don't just read someone's description of someone else's description of ...
Read the scientist's actual words!

See excerpts from Hooke's masterpiece MICROGRAPHIA in this clever Virtual book: http://archive.nlm.nih.gov/proj/ttp/flash/hooke/hooke.html

See Hooke's COMPLETE book, Micrografia ,at the gutenberg site: http://www.gutenberg.org/etext/15491

05 July 2010

E = mc^2 explained (from PBS)

Ten top Physicists talk about the meaning of E = mc^2.
Each recording is about 1.5 minutes...  Go to: http://www.pbs.org/wgbh/nova/einstein/experts.html

01 July 2010

NFPA Fire Diamond for Hazardous Chemicals

NFPA Fire Diamond for Hazardous Chemicals.
Blue: Health,
Red: Flammability,
Yellow: Reactivity,
White: Other.

For more info, see: http://www.cooperlab.wustl.edu/LabMethodsReagentsOperations/Lab_Operations/nfpa.html

Check your understanding!
This is the NFPA diamond for Propane (CH3-CH2-CH3).
What does it mean?

15 June 2010

NEUTRON STAR by Larry Niven: Sci-fi (science fiction) books make Science fun

Read Larry Niven's famous science fiction story NEUTRON STAR, about a mystery force that killed Drs. Peter and Sonya Laskin, a husband-and-wife team of scientists.
That same force is now trying to kill our hero, Beowulf Schaefer.
Can you find out what the mystery force is before he does?
What should he do to keep alive?

10 June 2010

Read Michael Faraday's Original lectures on Physics

Can you balance a bucket full of water so that it hangs off the edge of a table without falling?
Michael Faraday can.

See the intriguing solution,
and his thoughts on all aspects of Physics,
from one of the most famous Physicists in history.

29 April 2010



A diagram of the main parts of a neuron

Overview of your SPINAL and CRANIAL nerves. Note the eight CERVICAL nerves, the 12 THORACIC nerves, the 5 LUMBAR nerves, and the 5 SACRAL nerves.
Which nerves innervate your arms?
Which nerves innervate your legs?
Detailed view of the MAJOR NERVES in your body.

The DERMATOMES of your body. If you have a spinal cord injury, for example, by slipping on ice, the corresponding dermatome will become numb or will hurt greatly. For example, if the front of your leg including your knee becomes numb, which vertebrae in your spinal cord has become injured ?

A SAGITTAL view (cut in half) of the brain to show the internal structures. Note in particular the HYPOTHALAMUS and the PITUITARY gland. Among other things, these parts of your brain are critical in changing boys and girls into men and women.

The FOUR LOBES of the Brain: FRONTAL lobe, PARIETAL lobe, OCCIPITAL lobe and TEMPORAL lobe. COMPARE to the bones of the skull. WHAT do each of these lobes do?

REFLEXES are hard wired into your spinal cord, and react even before your brain is notified. Some examples of reflexes are to...
  • Help pick up an unexpectedly heavy load
  • Drop a disastrously heavy load before your muscles and/or tendons are torn
  • Help to balance your body
  • Take away your arm or leg from a pan that is too hot or a sharp object on the ground

27 April 2010


Are we addicted to oil?

The United States uses almost 20 million barrels of oil EVERY DAY, 365 days a year, more than twice as much as the next largest consumer, China, and more than four times as much as the third largest consumer, Japan.

Here's a list of the other top 9 countries in terms of their oil usage.

In this chapter of our Chemistry book, learn how to make GASOLINE, DIESEL fuel, JET fuel, NATURAL gas, HEATING oil, TAR and ASPHALT, and how to use FRACTIONAL DISTILLATION and CATALYTIC CRACKING to separate petroleum into all of these important chemicals:

READ this chapter from our Chemistry book: http://docs.google.com/Doc?docid=0ARNbGsVH1evCZGQ5MjluM2dfMTg1NmdzejRmZzk&hl=en