Category Archives: Science & Nature

Science and Nature Magazines Online Subscriptions

A Symbol of Life and Freedom


The American Bald Eagle – A Symbol of Life and Freedom
| By Lynda Lacroix

The United States congress adopted the American Bald Eagle in 1782 as the national emblem. Native Americans considered these birds to be holy and their feathers sacred adorning themselves with feathers to show their rank in the tribe or their prowess in battle. Not everyone thought these birds to be so honorable. According to myths and stories, they were hunted and slaughtered without regard, reducing their number from the thousands to only a few hundred nesting pairs. Although Congress enacted the Bald Eagle Protection Act to protect the symbol of our nation and to prevent these beautiful birds from becoming extinct, other battles were still to be fought in the war of survival before this magnificent bird started the uphill climb to recovery.


Seed magazine - Subscription

Seed magazine - Subscription

Seed is more than a magazine about science and its discoveries. It treats science as a lens for viewing the world and explores its influence on the social, political, economic, aesthetic, moral, and intellectual landscapes of our time. Seed presents the insights, opinions, and profiles of a changing cultural shift rooted in science, all presented alongside cutting-edge design and photography. Subscribe to the digital edition and get early access to each issue before it reaches the newsstands. You’ll also receive a host of digital enhancements like embedded videos, slideshows, and more.



Americans grow up with a mental picture of the American Bald Eagle because it is used as a symbol on some currency, flags, and memorials as well as being a popular model for paintings to adorn our walls. It is easily recognized with a dark body and white feathers on both the head and tail. The female eagles are larger than the males, weighing up to fourteen pounds, while the males generally weigh seven to ten pounds. Their lifespan can be more than thirty years in the wild. Mating for life, they often nest within a hundred miles of the nest where they were reared; laying a clutch of two or three eggs yearly in a nest they expand year after year, the nest sometimes reaching ten feet in diameter. Both parents participate in the incubation of the eggs, a process which will take between thirty-four and thirty-six days (hatching usually a day or two apart). A young eagle or fledgling will leave the nest between seventy and ninety-eight days of age. Bald Eagles will breed beginning in February through July away from human disturbances in open areas. Eagles will migrate from Northern area further south for the winter, gathering along waterways with an abundant food supply.

Habitats for the bald eagles include waterways or estuaries, large lakes, seacoast area, reservoirs, and major rivers, but ample food source is not the only requirement for the large birds. They must also have perching and nesting areas to accommodate this species.

Much of the bald eagles original habitat has been lost since the Europeans arrived in North America due to deforestation for towns, farms, and for lumber to support the growth. This deforestation has destroyed perching and nesting sites, forcing the raptors to seek other roost such as the top of a high voltage electric pole.

The bald eagle was adopted by the U.S. Congress as the national emblem in 1782. At that time, the number of eagles was estimated as high as seventy-five thousand. By 1940, the number had reduced so drastically that Congress enacted the Bald Eagle Protection Act. This act made it illegal to harass, kill, or possess the birds or any bird or any bird parts without a permit. Although this act offered a promise for the future of the eagle, the struggle for survival was far from over. Farmers and ranchers viewed the eagle as a threat to their livestock but their primary prey is fish although they will eat waterfowl, small mammals or rodents, and carrion.

The chemical era for agriculture and pesticides after World War II ushered in new problems for the troubled population of eagles while fighting the war on insects. DDT and other pesticides applied to lawns and crops washed into the nations’ water sources and contaminated water plants, fish, and small creatures, supplying a deadly dose to the eagles as they ate the fish where the chemicals concentrated in their tissues. According to the U.S. Fish and Wildlife Service, DDT was originally used to control mosquitoes along coastal and wetland areas. DDT accumulated in the birds’ fat as the DDT broke down in the birds’ body and slowed the release of calcium into the eggshells produced by the females. These birds in turn laid eggs with thin shells that would be crushed by the parents incubating them.

The Secretary of the Interior in 1967 under the Endangered Species Preservation Act of 1966 listed bald eagles south of the fortieth parallel as endangered. The population numbers had dropped to fewer than 500 pairs in the lower forty-eight states mainly due to habitat destruction, hunting, and the use of pesticides like DDT. Scientists determined the link between DDT and the lower number of eagles and the United States government banned its’ use in 1972. Another battle had been won, but the war was still not over.

Although the bald eagle received protection first under the Migratory Bird Treaty Act of 1918, it wasn’t until after the Endangered Species Act passes in 1973, that conservation measures to protect the eagle were implemented. The Endangered Species Act allowed distinct populations of animal species to be listed and new categories of threatened species to be added. Endangered species are defined by the Act as any species in danger of extinction throughout a significant portion or all of its’ range. A captive-breeding program to produce birds for release into the wild was started by the U. S. Fish and Wildlife Service. In addition to the captive breeding program, the National Wildlife Refuges and local raptor rehabilitation centers work to improve habitats or by rehabilitating injured eagles so they may be released back into the wild. Most of these organizations work through volunteers and are funded by donation, providing medical care for the birds and public education through presentations and exhibitions. These measures, coupled with law enforcement and protection of the nesting sites during breeding, helped the recovery of the species, but even with these measures there were still challenges ahead for the Bald Eagle.


Mutts - Subscription

Mutts - Subscription

Subscribe to BONE-A-FIDE MUTTS now and receive 6 full issues for just $14.95! You’ll get each issue delivered straight to your computer as soon as it goes on sale!Bone-A-Fide Mutts: The Dogs America Loves celebrates mixed breeds of all shapes and sizes! Our features cater to people who love dogs, plain and simple! In our pages you’ll find useful tips for canine care, features on adoption events, touching real-life stories of rescued pups, dogs throughout history, all submitted by real people!



Another cause of mortality has been lead poisoning with more than two hundred and twenty five cases diagnosed in the last 15 years. The National Wildlife Federation succeeded in the early 1980s in getting the U. S. Fish and Wildlife Service to ban the use of lead shot nationwide in hunting waterfowl, Waterfowl that had eaten or been wounded by lead shot would cause lead poisoning in eagles, which could weaken or even kill adult eagles. Since the ban, waterfowl hunters use shells loaded with steel shot instead of lead. Although the change to steel shot has helped the problem of lead poisoning, it has not cured it since upland hunters can still use lead shot, while other reports show some birds have been poisoned from lead fishing sinkers. In order to reduce the risk, people should not leave solid debris such as lead sinkers in rivers and lakes where there is a chance they could be ingested by an eagle.

Another battle still being fought concerns the toxic effects of mercury affecting eagles with a variety or neurological problems that can alter motor skills and reduce the rate of eggs hatching. The source of the mercury has been identified entering waterways as air emissions from solid waste incineration sites as well as other sources. The impact on the bald eagle population in the Southeastern Region is under investigation.

In the first half of this century illegal shooting still posed a threat to eagles, this impact has been reduced through public education and law enforcement. Some deaths still occur on power poles and lines that have not been redesigned to protect raptors, although the poles are usually configured to reduce the occurrence of electrocutions.

Humans and their disturbances are still a long-term threat to the Bald Eagle. Recreational activity in nesting sites can impact the reproduction processes of these birds. Eagles prefer to breed away from human disturbance in the open and adult birds can be flushed from the nests during incubation and brooding periods. This can expose the eggs or young to adverse conditions. In order to reduce some of the problems caused by these disturbances, land management practices have included zones of protection restricting public access during crucial times. If an individual finds themselves in an eagle habitat, he or she should avoid disturbing the eagles by staying at least three hundred feet away and by keeping an obstruction between them.

Although each of these problems individually is no longer a serious threat to the existence of the Bald Eagle, collectively, they can cause serious problems if not monitored. On August 11, 1995, the U.S. Fish and Wildlife Service, Division of Endangered Species, ruled that the American Bald Eagle would be removed from the endangered list but would remain listed as threatened even though the eagle has made a spectacular comeback to nearly 5,800 pairs. In a CBS new report on June 29, 2000 Cindy Hoffman stated that lawyers for the government were trying to determine if the birds’ habitat would be protected by federal law if it is taken off the endangered species list. Due to all of these efforts, generations to come will be able to look up and see our national symbol flying overhead instead of just seeing in on our currency, stamps or flag poles.

The U.S. Fish and Wildlife Service will work with state agencies to monitor the status of the bald eagle for five years, a requirement of the Endangered Species Act. They are the principal federal agency responsible for protecting, conserving, and enhancing wildlife, fish, and their habitats while managing over 150 million acres, 550 units in the National Wildlife Refuge System, operating sixty-six national fish hatcheries and 37 wetland management districts. The U.S. Fish and Wildlife Service administers the Endangered Species Act, enforces Federal wildlife laws, conserves and restores wildlife habitats, manages migratory bird populations, and helps foreign countries with their conservation practices, while overseeing the Federal Aid programs to state fish and wildlife agencies. In addition to all of these duties, the U.S. Fish and Wildlife Service established the National Eagle Repository in early 1970 to provide feathers from the Golden and Bald Eagles for Native American ceremonial purposes located at the Rocky Mountain Arsenal National Wildlife Refuge in Denver, Colorado. The repository is a collection point for dead eagles. The Bald Eagle Protection Act prohibits the taking, transportation, barter, trade, import or export, sale of any part of and the possession of eagles. This Act makes it illegal to possess and eagle or body part from an eagle. Possession of an eagle body part, even a feather, without a permit, is a felony and can carry a fine up to $10,000 and/or imprisonment. The U.S. Fish and Wildlife Service will issue a permit to a Native American to receive and possess eagle feathers from the Repository for use in religious ceremonies, but there is a large demand with thousands on a waiting list. The Repository receives around nine hundred eagles per year and it could take up to two and a half years for an order to be filled for even a single feather.

As of January 2009, The American Bald Eagle is still listed as a threatened species for certain populations in the Sonoran Desert (Region 2) but is listed as Taxon-recovered for the lower 48 states. Diligent observation is still required to maintain this recovery but proper steps were taken to provide the necessary protection for these magnificent birds.

The American people have risen to the occasion to protect the symbol of our nation and because of this dedication; the American Bald Eagle has made a spectacular recovery from near extinction. The story of the fight to save this magnificent bird shows the same courage and honor as we associate with the bird itself. It has been an uphill battle, but it is one the American people rose to meet head on. Maybe one day on the long drive to school, in the early morning hours, I can look up at one of those beautiful birds soaring high above the trees and feel pride in knowing it is there because we cared enough not to give up.

Lynda M Lacroix is an accomplished writer with 40 years experience working with nature and species that inhabit this planet. She has dedicated her life to methods of co-existing on this planet; reducing our carbon footprint; preservation of species; and now wants to educate those interested in living a homestead life. A homestead life uses the circle of life merged with new technologies bringing back basic values that have been forgotten. Click here for more: http://alternativehomesteading.com.

Article Source: http://EzineArticles.com/?expert=Lynda_Lacroix
http://EzineArticles.com/?The-American-Bald-Eagle—A-Symbol-of-Life-and-Freedom&id=3183015

 

2014 SILVER EAGLE NGC MS70 (BALD EAGLE LABEL)

2014 SILVER EAGLE NGC MS70 (BALD EAGLE LABEL)
Current price:
$45.99
Ends in:
0d 0h 31m
2014 SILVER EAGLE NGC MS70 (BALD EAGLE LABEL)
Seller: eBay

Zippo Lighter - Fusion Bald Eagle Flag - Stained Glass - US - American - # 44489

Zippo Lighter - Fusion Bald Eagle Flag - Stained Glass - US - American - # 44489
Current price:
$39.97
Ends in:
0d 0h 33m
Zippo Lighter - Fusion Bald Eagle Flag - Stained Glass - US - American - # 44489
Seller: eBay

Sterling Silver 925 Pendant Large American Bald Eagle - Harley Davidson Fans

Sterling Silver 925 Pendant Large American Bald Eagle - Harley Davidson Fans
Current price:
$25.50
Ends in:
0d 0h 34m
Sterling Silver 925 Pendant Large American Bald Eagle - Harley Davidson Fans
Seller: eBay
 

Handling Hazardous Chemical Spills

Handling Hazardous Chemical Spills

You probably know the risks of spills very well if you work in an area that deals with any kind of hazardous material. Most companies make spills a very large part of their safety training. Depending on the chemicals you work with, the possible damages and risks may be anything from corrosive acids to toxic oils. All liquids have their own unique properties, and so different chemicals may require totally different solutions to clean up the spills.

If you work with hazardous chemicals, such as acids, then you know that attempting to clean acid with a paper towel is quite useless, as is using a mop or other means which can do a good job of cleaning smaller spills. The chemicals that you work with would eat through a flimsy paper towel or a mop head’s cotton fibers in a matter of minutes, or even seconds if it’s a strong acid. Assuming you could make a mop work temporarily, you’d be buying new mop heads every time you had to clean up a spill. This is, obviously, very counterproductive.


Seed magazine - Subscription

Seed magazine - Subscription

Seed is more than a magazine about science and its discoveries. It treats science as a lens for viewing the world and explores its influence on the social, political, economic, aesthetic, moral, and intellectual landscapes of our time. Seed presents the insights, opinions, and profiles of a changing cultural shift rooted in science, all presented alongside cutting-edge design and photography. Subscribe to the digital edition and get early access to each issue before it reaches the newsstands. You’ll also receive a host of digital enhancements like embedded videos, slideshows, and more.



Also, you’ll want to protect yourself, your surroundings and your colleagues and customers from the effects of the spilled chemical. How best do you accomplish this?

The solution to your problem is an easy one. A hazardous materials spill kit contains everything you need to handle the nastiest of hazardous chemicals. The kits that you’ll select for handling a hazmat spill should include quite a few different items. You’ll need an absorbent that will absorb and neutralize the chemical. In kits, these come in the form of loose materials, socks, mats, and pillows. Each can be used for a variety of things. Mats and pillows are great for helping to control leaks that can’t be avoided, or simply can’t be repaired right away. Loose absorbent could be used to contain and to clean a large spill. To do this you’d surround the spill with the absorbent, and then gently push the absorbent in to absorb the chemical. The socks could be used for either application.

Your kit should also contain safety equipment. At the very least, you’re going to need disposable gloves to protect hands, disposable shoe covers to protect shoes from effects of chemicals or causing slips from residue, goggles to protect your eyes, and containers for the safe and legal disposal of the chemicals. It would be a good idea to get a kit which also contains hazmat suits and respirators to protect the full body during spills of particularly aggressive fluids.

Your kit should also contain documentation detailing the use of the products included for anyone who may not know. Take time to familiarize both yourself and any colleagues who may be near the area during a spill with this documentation. Understanding how to effectively and efficiently use the items in the kit and handle a spill can help to control hazards associated with working with chemicals, and may even save a life. As with any hazardous materials, you’ll also find MSDS documentation for any hazardous materials in the are. This sheet will tell you what they are, what they can do, and how to treat if there is any contact with skin, eyes or if it’s inhaled.

Having these kits and knowing how to use them is very important, At the very least, it could save you money. At the very best, it may even save the life of yourself or someone you work with.

Disguised Perils

The chemicals in your facility pose many hidden risks. Many liquids look completely harmless, just like they might be water. For this reason it is important that all chemicals are clearly labeled and there is documentation available as to what they are capable of. It is also highly imporant that you can clean up spills and leaks of any hazardous chemicals in your facility quickly and efficiently.

Acids and bases are very corrosive chemicals which can cause a very serious burn if they come in contact with flesh. The burns can range from minor irritation (like a rash) to a very serious third degree burn, or worse. Some corrosives can eat through bone.

Many hazardous chemical spill kits are equipped with Personal Protective Equipment (PPE) such as goggles, clothing covers, respirators, goves, and shoe covers for this reason. These measures will help to shield the person working with chemicals from the corrosive properties of the chemicals.

There are many times when you may not realize exactly what liquid you’re working with. Many chemicals are colorless and odorless, and you won’t be able to tell the difference between them and water unless you can see a chemical reaction occurring, such as the bubbling of acid as it reacts with a solid. If you are unable to determine the source of the spilled liquid, for any reason, treat it as a chemical spill. Never assume that any liquid is simply water, especially in a facility that stores chemicals. Just because the liquid is colorless and odorless doesn’t mean that it’s not an acid or a base – or possibly worse – a highly flammable chemical.


Maclean's - Subscription

Maclean's - Subscription

Each week, Canada's national current affairs magazine leads the discussion on the issues that matter in the fields of international affairs, social issues, national politics, business and culture. We entertain, enlighten and engage you with strong investigative reporting, exclusives and mind-jolting opinion, supported by an energetic design featuring candid photography. Maclean's helps you make sense of it all -- from Are You Exposed? to The New Sitcoms to How to Save the World.



Chemical Safety Training
If you own or operate a facility which deals in any type of hazardous chemicals, any training of new employees should include a rigorous chemical safety training segment.

Your employees need to know and understand the chemicals they’ll be working with. Are they using acids or bases? If so, what acids? How strong are they? What are the hazards and how serious can they harm someone? If it’s spilled, what are the proper precautions to take before cleaning it, and what are the procedures for cleaning it?

If they’ll be working in a specific department, make sure your safety training shows them exactly where any spill kits and safety materials will be. Chemical safety should include a kit capable of properly handling and neutralizing any chemicals in the area, proper Personal Protective Equipment, a hand washing sink, an eye wash station and possibly a disinfecting shower. First aid kits should always be available in the workplace.

Make sure your employees know where they can find PPE equipment and that you stock equipment that will fit them. People, unfortunately, are not “one size fits all”. You need to make sure that you have proper equipment available for everyone you employ. If you work in a specialized industry, you may be able to make it a condition of employment that they own their own, especially if it’s essentially a uniform item. It doesn’t matter how you ensure they have and know how to use it, simply that you do.

Your most valuable resource is not the chemicals, or the product, or the building you work in. Your most valuable resource will always be the people who make your product possible. Make sure you keep them safe, trained, and able to handle all of the possibilities their jobs may throw their way. You could employ a group of rocket scientists, but in the event of an accident they may still all be dead if they have no idea where safety equipment is or how it operates.

Spill911.com carries a large selection of spill kits and industrial safety supplies.

We also carry a full supply of spill containment products.

 

A Practical Guide to Chemical Spill Response by John Hosty (English) Paperback B

A Practical Guide to Chemical Spill Response by John Hosty (English) Paperback B
Current price:
$180.98
Ends in:
0d 2h 40m
A Practical Guide to Chemical Spill Response by John Hosty (English) Paperback B
Seller: eBay

Hazardous Chemical Spill Cleanup by J.S. Robinson (English) Hardcover Book

Hazardous Chemical Spill Cleanup by J.S. Robinson (English) Hardcover Book
Current price:
$102.91
Ends in:
0d 8h 44m
Hazardous Chemical Spill Cleanup by J.S. Robinson (English) Hardcover Book
Seller: eBay

Stop / Keep Out / Chemical Spill Octogon Shape Metal Sign by CEGI - SIGN 24"

Stop / Keep Out / Chemical Spill Octogon Shape Metal Sign by CEGI - SIGN 24
Current price:
$66.47
Ends in:
0d 13h 16m
Stop / Keep Out / Chemical Spill Octogon Shape Metal Sign by CEGI - SIGN 24
Seller: eBay
 

9th Grade Science Fair Projects

9th Grade Science Fair Projects Made Fun and Easy | By Dee Schrock

Unfairly or not, 9th grade science fair projects compete against those made by high school students, which can be intimidating for even the most accomplished 9th grade science whiz. Fortunately, the playing field can be leveled with the right science project that can compete head-on with others. But first, it is necessary to choose the type of science fair project you will take on. This makes the process of choosing the final science project so much easier since you have narrowed your choices down to a manageable level.


Popular Science - Subscription

Popular Science - Subscription

Travel to the cutting edge of science and technology with Popular Science- and discover a world of incredible inventions and amazing scientific advancements. Be the first to know about the latest developments in cars, electronics, communications, tools, energy, aviation, space exploration, and much more. Popular Science is your guide to what’s new and what’s next.



Experimentation

This is the most common type used in 9th grade science fair projects, which seek to answer a relatively straightforward question through the scientific method. Thus, you will observe and collect data, measure and organize it, construct a hypothesis and prediction, experiment with the variables, analyze the resulting data, make a model and finally, communicate the results. Of course, your venue for communication is the science fair. Fun examples of this type are the comparison of wood pellets for barbecues, determination of the best type of pesticide against crickets, and the evaluation of various types of water purification.

Demonstration

You will either confirm or invalidate the results of a previous experiment conducted by another scientist. In many instances, you do not have to replicate the processes previously employed as you can indeed improve upon them. Usually, demonstration type 9th grade science fair experiments can be culled from Internet resources, which have a rich abundance of full published studies made by other 9th graders. Examples include the improvement of jatropha oil properties and the explanation of the oscillating clock chemical reaction.

Research

As the name suggests, you collect relevant information about the chosen topic and then presenting your findings. Keep in mind that a good presentation for 9th grade science fair projects can make or break your science fair project so make it as best as you possibly can. To make it fun, you can use innovative presentation methods like a mini-play or a mini-demonstration. Or you can use more colorful materials to attract the attention of the observers and judges.

Model

If you want to stand out from among many 9th grade science fair projects, the best choice would be to go for the model type of project. You have to build a scale model to describe in visual and audio terms your chosen concept or principle. Examples include making a scale model of the tectonic plates to simulate earthquakes, constructing a baking soda volcano that spews vinegar, and building a solar toy car to explain its large-scale counterparts. Or to make it even more fun, you can invent something new! Don’t worry if it appears silly to others because the silliest of inventions often start a revolution. Think of the way Henry Ford revolutionized car manufacture.

Collection

If you are an avid collector of things, you can show them off but with an award-winning twist. For example, instead of showing just your bug specimen collection, explain how each one differs according to the season of the year it was collected, how its environment may have affected its growth and many other things.

Once you have selected from among these types, your 9th grade science fair projects will become more inspired, more focused and more award-winning. And isn’t that where the fun really is?

For more 9th grade science fair projects and step-by-step instructions, visit http://www.easy-kids-science-experiments.com.. Be sure to check out the site for tons of simple science projects elementary science experiments, middle school, and high school science.
Copyright 2009. Feel free to reprint this article on your site as long as the article is not modified in any way and the resource information (about the author) is listed as above.Article Source: http://EzineArticles.com/?expert=Dee_Schrock
http://EzineArticles.com/?9th-Grade-Science-Fair-Projects-Made-Fun-and-Easy&id=3044873

 

Signed How Salvador Dali Smuggled Baudelair Into The Science Fair 2004 Codrescu

Signed How Salvador Dali Smuggled Baudelair Into The Science Fair 2004 Codrescu
Current price:
$24.99
Ends in:
0d 1h 0m
Signed How Salvador Dali Smuggled Baudelair Into The Science Fair 2004 Codrescu
Seller: eBay

Startup Andy and the Science Fair by Kyle Kelly (English) Paperback Book

Startup Andy and the Science Fair by Kyle Kelly (English) Paperback Book
Current price:
$16.97
Ends in:
0d 1h 2m
Startup Andy and the Science Fair by Kyle Kelly (English) Paperback Book
Seller: eBay

VINTAGE 1980's RADIO SHACK SCIENCE FAIR 200-IN-ONE ELECTRONIC PROJECT LAB 28-265

VINTAGE 1980's RADIO SHACK SCIENCE FAIR 200-IN-ONE ELECTRONIC PROJECT LAB 28-265
Current price:
$24.95
Type:
Auction
No. of bids so far:
0
Ends in:
0d 1h 18m