Thursday, August 26, 2010 ~ Have your say...

How To Get Involved With Skepticism


I've often wondered how I can promote science and critical thought, while advancing skepticism. This blog is a result of that question:  I wanted to "show off" the beauty of the natural world, without having to invoke the paranormal or mysticysm or any pseudoscience.  

A blog is only one of the ways to accomplish this - there are literally dozens of other ways skeptics and non-skeptics alike can become involved.  

The folks over at Skeptic.com have created a freely downloadable PDF entitled "What do I do next?", where leading skeptics in the field discuss 105 practical ways to promote science and advance skepticism.

I won't list the 105 ways here, but I highly recommend downloading and reading the document.


Tuesday, August 24, 2010 ~ Have your say...

12 Events That Will Change Everything (interactive)

The folks over at Scientific American have created a fascinating interactive article.


The web-only article is a special rich-media presentation of the feature, "12 Events That Will Change Everything," which appears in the June 2010 issue of Scientific American. The presentation was created by Zemi Media.

The events include a polar meltdown; extra dimensions, a nuclear exchange, discovering alien intelligence, creating life, room temperature super-conductors, machine self-awareness, cloning of a human, a massive pacific earthquake, fusion energy, a deadly pandemic, and a major asteroid collision.


From the editors:

"The best science transforms our conception of the universe and our place in it and helps us to understand and cope with the changes beyond our control.  Relativity, natural selection, germ theory, heliocentrism, and other explanations of natural phenomena have remade our intellectual and cultural landscapes.  The same holds true for inventions as diverse as the Internet, formal logic, agriculture, and the wheel.
 
What dramatic new events are in store for humanity?

In the article, we contemplate 12 possibilities and rate their likelihood of happening by the year 2050.  Some will no doubt bring to mind long-standing dystopian visions:  extinction-causing asteroid collisions, war-waging intelligent machines, Frankenstein's monster.  Yet the best thinking today suggests that many events will not unfold as expected.  In fact, a scenario could be seen as sobering and disappointing to one person and curious and uplifting to another.
 
One thing is certain:  they all have the power to forever reshape how we think about ourselves and how we live our lives."

Sunday, August 22, 2010 ~ Have your say...

5 Creepy Insects From Northern Ontario

My latest trip to the cottage, located near Haliburton, Ontario, yielded a handful of images of various insects.  Unfortunately, except for the carpenter ants (which I am very familiar with, as I lay siege to their nest in my home), I cannot positively identify these critters.  Any help in their identification would be greatly appreciated.  Click on the image to see it in full size.

Below, dozens of carpenter ants were found busy at work, removing grains of wood from a railroad tie.  They would disappear into the hole, return to the exit, and then drop a small piece of wood onto a tiny pile.

This looks like it's related to a dragonfly...

The exoskeleton shed from an insect coming out of nymph phase.  Note the webbed wings... this guys is the stuff of nightmares.

While wiping my glasses, this green insect clinged to my lens.  I snapped a shot just before he flew away.

A moth, dead on the window screen of the cottage. 

All images copyright Bill Litshauer, 2010.

Wednesday, August 4, 2010 ~ Have your say...

Consumer Reports Lists 12 Supplements You Need To Avoid

The $26.7 billion supplemental medicine industry received a much-needed kick in the ass.

Results of a new investigation by Consumer Reports, released yesterday, warn consumers to avoid 12 supplement ingredients that have been linked to cancer, coma, heart problems, kidney damage, liver damage, and death.  

Consumer Reports worked with the Natural Medicines Comprehensive Database, an independent research group that evaluates the safety and effectiveness of nutritional supplements, to develop this list.

Consumers might be attracted to dietary supplements because they're "all natural" and don't contain the synthetic chemicals found in prescription drugs. But they might be getting fooled.  Hidden drugs and steroids have been detected in more than 170 supplements since 2008. Hazardous ingredients have been known to turn up in dietary supplements marketed for weight loss, bodybuilding, and sexual enhancement.

More than half of the adult population in the U.S. take supplements for a variety of reasons -- to stay healthy, lose weight, gain an edge in sports, or to improve their performance in the bedroom. What many consumers don't realize is that the supplement manufacturers routinely, and legally, sell their products without first having to demonstrate that they are safe and effective. 

So do they even work?  Of the more than 54,000 dietary supplement products in the Natural Medicines Comprehensive Database, only about a third have some level of safety and effectiveness that is supported by scientific evidence, according to a review by NMCD experts. And close to 12 percent have been linked to safety concerns or problems with product quality.

Because of inadequate quality control and inspection, supplements contaminated with heavy metals, pesticides, or prescription drugs have been sold to unsuspecting consumers. 
And FDA rules covering manufacturing quality don't apply to the 
companies that supply herbs, vitamins, and other raw ingredients. 
 
The following supplement ingredients are among those linked by clinical research or case reports to serious side effects.  They should be avoided at all costs. (source:  http://www.consumerreports.org/health/natural-health/dietary-supplements/supplement-side-effects/index.htm)

NAME
(also known as)
PURPORTED USES POSSIBLE DANGERS COMMENTS
ACONITE
(aconiti tuber, aconitum, radix aconiti)
Inflammation, joint pain, wounds, gout. Toxicity, nausea, vomiting, low blood pressure, respiratory-system paralysis, heart-rhythm disorders, death. Unsafe. Aconite is the most common cause of severe herbal poisoning in Hong Kong.
BITTER ORANGE
(aurantii fructus, Citrus aurantium, zhi shi)
Weight loss, nasal congestion, allergies. Fainting, heart-rhythm disorders, heart attack, stroke, death. Possibly unsafe. Contains synephrine, which is similar to ephedrine, banned by the FDA in 2004. Risks might be higher when taken with herbs that contain caffeine.
CHAPARRAL
(creosote bush, Larrea divaricata, larreastat)
Colds, weight loss, infections, inflammation, cancer, detoxification. Liver damage, kidney problems. Likely unsafe. The FDA advises people not to take chaparral.
COLLOIDAL SILVER
(ionic silver, native silver, Silver in suspending agent)
Fungal and other infections, Lyme disease, rosacea, psoriasis, food poisoning, chronic fatigue syndrome, HIV/AIDS. Bluish skin, mucous membrane discoloration, neurological problems, kidney damage. Likely unsafe. The FDA advised consumers about the risk of discoloration on Oct. 6, 2009.
COLTSFOOT
(coughwort, farfarae folium leaf, foalswort)
Cough, sore throat, laryngitis, bronchitis, asthma. Liver damage, cancer. Likely unsafe.
COMFREY
(blackwort, common comfrey, slippery root)
Cough, heavy menstrual periods, chest pain, cancer. Liver damage, cancer. Likely unsafe. The FDA advised manufacturers to remove comfrey products from the market in July 2001.
COUNTRY MALLOW
(heartleaf, Sida cordifolia, silky white mallow)
Nasal congestion, allergies, asthma, weight loss, bronchitis. Heart attack, heart arrhythmia, stroke, death. Likely unsafe. Possible dangers linked with its ephedrine alkaloids banned by the FDA in 2004.
GERMANIUM
(Ge, Ge-132, germanium-132)
Pain, infections, glaucoma, liver problems, arthritis, osteoporosis, heart disease, HIV/AIDS, cancer. Kidney damage, death. Likely unsafe. The FDA warned in 1993 that it was linked to serious adverse events.
GREATER CELANDINE
(celandine, chelidonii herba, Chelidonium majus)
Upset stomach, irritable bowel syndrome, liver disorders, detoxification, cancer. Liver damage. Possibly unsafe.
KAVA
(awa, Piper methysticum, kava-kava)
Anxiety (possibly effective). Liver damage. Possibly unsafe. The FDA issued a warning to consumers in March 2002. Banned in Germany, Canada, and Switzerland.
LOBELIA
(asthma weed, Lobelia inflata, pukeweed, vomit wort)
Coughing, bronchitis, asthma, smoking cessation (possibly ineffective). Toxicity; overdose can cause fast heartbeat, very low blood pressure, coma, possibly death. Likely unsafe. The FDA warned in 1993 that it was linked to serious adverse events.
YOHIMBE
(yohimbine, Corynanthe yohimbi, Corynanthe johimbi)
Aphrodisiac, chest pain, diabetic complications, depression; erectile dysfunction (possibly effective). Usual doses can cause high blood pressure, rapid heart rate; high doses can cause severe low blood pressure, heart problems, death. Possibly unsafe for use without medical supervision because it contains a prescription drug, yohimbine. The FDA warned in 1993 that reports of serious adverse events were under investigation

You can download the document here:



References:

Tuesday, August 3, 2010 ~ Have your say...

Real Life Dragon?

Ever see the movie Avatar, with those giant flying creatures called the "toruk"?  Here's the real-life version:  Draco Volans.

This incredible image of a "real life dragon" was taken by Reddit user Biophilia_curiosus:



Biophilia_curiosus wrote:

"The crazy part is that those lines you see running through the wings like veins are actually its ribs! Evolution did a number on these guys.

They can expand and contract their chests at will to glide great distances. We were only able to catch females as they were laying their eggs. All we could do is watch as the males soared overhead."

Photo Credit:  Reddit user Biophilia_curiosusn

These "dragons" are an average length of just under a foot, and the females are larger than the males. They don't have true wings, but instead glide from tree to tree by extending their ribs outwards. When the ribs are stretched out, the skin between each rib forms a large flat surface on each side that the lizards use to slow and control their gliding descent. Using their "wings" the flying dragons can glide over distances of over 25 feet.

Both males and females have a gular flap below their chins which can be extended and may serve as a type of rudder in controlling their flight. Fully grown flying Draco volans measure just under a foot in length with a "wingspan" that could be anywhere up to ten inches.

Draco volans eat insects that they find on the trees in which they live. Their diet typically consists of ants and termites which they catch on their tongues.  Males will claim a "territory" of two or three trees, patrolling and protecting the area as they glide from tree to tree.

It seems that, if you look hard enough, you can find many of history's mythical creatures right here on Earth.

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