background preloader

Botanicus: Library Of Historic Botanical Literature

Botanicus: Library Of Historic Botanical Literature
Related:  risullyfaranmarywith

Top 10 Most Dangerous Plants In the World 1. Most likely to eat a rat Giant Pitcher Plant: Nepenthes attenboroughii Discovered more than 5000 feet above sea level on Mount Victoria in the Philippines, the giant, carnivorous pitcher plant secretes a nectar-like substance to lure unsuspecting prey into a pool of enzymes and acid. A series of sticky, downward ribs makes it nearly impossible for trapped prey to escape. 2. Castor Bean Plant: Ricinus communis Castor-bean plants can be purchased at just about any garden center, despite containing the deadly poison ricin. 3. Western Water Hemlock: Cicuta douglasii Deemed the most "violently toxic plant that grows in North America" by the USDA, the water hemlock contains the toxin cicutoxin, which wreaks havoc on the central nervous system, causing grand mal seizures--which include loss of consciousness and violent muscle contractions--and eventually death, if ingested. 4. White snakeroot: Eupatorium rugosum 5. Monkshood: Aconitum napellus 6. Common Bladderwort: Utricularia macrorhiza 7. 8.

How to Build a Solar Heating Panel with Soda Cans If you’ve got good sun exposure on one side of your house, you can take advantage of free heat from the sun with this DIY solar heating panel, which uses old soda cans to collect and transfer the sun’s energy into your house. Sometimes, low-tech solar devices are much better than high-tech ones for home use, as they not only tend to be cheaper to make, but will also last much longer before any repairs or maintenance are necessary. And even better, they can be built in part from repurposed or recycled components, which is something you don’t see very often in new solar devices. This solar space heater design uses old soda cans to increase the surface area for heat transfer inside of it, and in its most basic design, uses no external power to move the air. Double-glazed glass or polycarbonate panels make up the front of the device, allowing the sun’s rays to enter it while restricting heat loss to the outside air, and the box is also insulated for more efficiency. Source: Blackle Mag Related:

Non-Edible Poisonous Flowers Chart Non-edible Poisonous Flowers This chart is a list of the most commonly-known poisonous plants and flowers to avoid while selecting edible flowers. It is not complete, so just because you do not see it listed here, do not assume it is safe to eat. Be sure you know exactly what you choose to consume. For more info on edible flowers, refer to my feature on Incredible Edible Flowers and Edible Flowers Chart with links to full-color photos and flavor info. • Edible Flowers Chart • Edible Flowers Information and Recipes • Herb Information • Spice Information • A to Z Recipes and Food Disclaimer: This is a list of the most common poisonous plants and flowers but it is by no means complete. A to Z Recipes and Food | Articles by topic Wildflowers & Weeds: Learn To Identify Wildflowers With Botany In A Day

Poisonous Plants 2 Plants basically poison on contact, ingestion, or by absorption or inhalation. They cause painful skin irritations upon contact, they cause internal poisoning when eaten, and they poison through skin absorption or inhalation in respiratory system. Many edible plants have deadly relatives and look-alikes. Description: The castor bean is a semiwoody plant with large, alternate, starlike leaves that grows as a tree in tropical regions and as an annual in temperate regions. Habitat and Distribution: This plant is found in all tropical regions and has been introduced to temperate regions. Description: This tree has a spreading crown and grows up to 14 meters tall. Habitat and Distribution: Chinaberry is native to the Himalayas and eastern Asia but is now planted as an ornamental tree throughout the tropical and subtropical regions. Description: A vinelike plant that has oval leaflets in groups of three and hairy spikes with dull purplish flowers.

Physical Computing There are a number of mechanisms common to mechanical systems of all sorts that are useful to know about when you want to control motion of any sort. While this page is by no means comprehensive, it will help get you started on understanding a few basics of how to move things. Before we go much further, there is one important thing you need to know. All of these machines are used to do work of some kind. Work, in this case, is defined as a force applied over a certain distance. The Lever The lever is about the simplest of machines, one we're used to deling with every day, from can openers to car jacks and millions of other everyday devices. The ratio of the long arm to the short arm tells us the mechanical advantage of the lever, which is the ratio of work put into the system to work done. The Pulley Pulleys are series of moving wheels and ropes, chains or wires used to gain mechanical advantage. The more pulleys we add, the greater the mechanical advantage we get. HowStuffWorks

Poisonous Plants Basics Plants are amazing creatures that produce many great benefits for human consumption. We get most of our medicines from plants, our foods and even our beauty products. Still, there are poisonous plants among the wild edible plants that people need to be aware of when it comes to consuming them. So what are poisonous plants anyways? If you remember one simple fact, it will help you realize why plants produce certain compound to deter predators – PLANTS CANT RUN! If you were to accidentally chomp on a Skunk Cabbage you would become very familiar with oxalate crystals that are like needles that stab you all the way down! Besides defending themselves, plants also make poisonous or toxic substances as byproducts from their usual metabolic processes. Ok, so you are out with your friends harvesting Cattail and you are a new forager. Stay Calm and Act Fast. From all of the resources I have looked at, it seems that young children are the most susceptible to plant and mushroom poisonings.

Free Wild Plant Identification eCourse You are out in the forest and looking at the glorious plant life surrounding you. Whether you are a beginner and have never identified one plant, or a Botany professor at a university, you might appreciate this refreshingly simple approach to plant identification. I remember lovingly (and sometimes screamingly) that my college classes in Systematic Botany required me to become acquainted with that local Washington Flora that we plant dorks call “Hitchcock and Cronquist”. I always felt a contradiction of rapt fascination and obsession, alternated with profound burnout, when trying to navigate this enormous dichotomous key! In addition, my observation skills as an ethnobotanist were refined , foraging for wild foods, fibers and medicine. What will I need? A combination of actual need for sustenance, curiosity and simple observation skills are almost all you need to start with plant identification. Meet a Plant Approach the plant of your choice and find a place to start.

Wild Plant Stock Photos - Wild Food School Digital images used in the course of WFS activities over the lastfew years are now being made available online. Past emphasis has been on illustration for plant identification purposes rather than pictorial 'art'. However, more 'creative' images will be added when time permits. As the image bank expands thumbnails will be split into individual species/subject pages; currently there are just a few pages on display. Shot for a variety of illustrative uses the most recent images are standardized at 50Mb TIF files from RAW; some earlier 17Mb items are also from RAW files. IMPORTANT NOTE: This image bank pictures poisonous, inedible and edible wild plants without distinction.

Great Pyramid Hydraulic Pulse Generator and Water Pump [Back to Pinnacle Black Russian Terriers] Stumble It! The Great Pyramid’s Subterranean Chamber Hydraulic Pulse Generator and Water Pump John Cadman (This article has many pictures. Pumping and pulsing model of the subterranean section of the Great Pyramid. Youtube vid (3 parts) covering most of this info Submit or promote on Mythbusters or (?) Video from September 19, 2009 showing pump running and some observations The following article is about the subterranean section of the Great Pyramid. This research has been published in Dr. Do you know what 0.0001" looks like? The machine that I'm proposing is not out of the realm of what the pyramid builders have shown that they could produce. FIGURE 1. The causeway from the Great Pyramid can be seen leading down to the location of the ancient Nile River. Fluffy Egyptology has been polarized into two primary factions. The oral indigenous teachings state: Did these buildings actually come from an earlier time of a more advanced civilization? FIGURE 2.

Poisonous Plants 1 Successful use of plants in a survival situation depends on positive identification. Knowing poisonous plants is as important to a survivor as knowing edible plants. Knowing the poisonous plants will help you avoid sustaining injuries from them. Plants generally poison by-- Ingestion. Plant poisoning ranges from minor irritation to death. Some plants require contact with a large amount of the plant before noticing any adverse reaction while others will cause death with only a small amount. Some common misconceptions about poisonous plants are-- Watch the animals and eat what they eat. The point is there is no one rule to aid in identifying poisonous plants. It is to your benefit to learn as much about plants as possible. Some plants become toxic after wilting. Learn to identify and use plants before a survival situation. Your best policy is to be able to look at a plant and identify it with absolute certainty and to know its uses or dangers. All mushrooms. Cowhage. Castor bean.

Wildcrafting.net: Foraging Database, Edible & Medicinal Plants Silvics Manual: Guide To N. American Tree Species Russell M. Burns and Barbara H. Honkala Technical Coordinators Timber Management Research Agriculture Handbook 654 (Supersedes Agriculture Handbook 271, Silvics of Forest Trees of the United States, 1965) Forest Service United States Department of Agriculture Washington, DC December 1990 Burns, Russell M., and Barbara H. The silvical characteristics of about 200 forest tree species and varieties are described. Oxford: 174, 181 (082, 7). Cover art: Natural stands of southern pine and cypress bordering a lake in Noxubee County, MS. Foreword "Silvics of Forest Trees of the United States," Agriculture Handbook 271, was the first comprehensive document of its kind in the United States. Our store of silvical and related knowledge has markedly increased since that silvics manual was published 25 years ago. "Silvics of North America" describes the silvical characteristics of about 200 conifers and hardwood trees in the conterminous United States, Alaska, Hawaii, and Puerto Rico. Jerry A.

Idaho Observer: How to remove mercury and other heavy metals from your body – safely and inexpensively From the September 2007 Idaho Observer: How to remove mercury and other heavy metals from your body – safely and inexpensively Due to the enormity of the problem of heavy metal poisoning in today’s world, and the fact that entire books have been written on this subject, this column will attempt to bring to light some of the methods people have successfully employed to regain their health without going bankrupt in the process. By Ingri Cassel In the July, 2007, Back to Basics column we covered the devastating effects of mercury poisoning and the fact that many Americans experience the effects of mercury being slowly released on a daily basis from dental fillings. Due to this fact, the most important step to take in removing mercury from your body is to safely remove the mercury amalgams. Simply removing them is NOT a safe method. This is undoubtedly the most expensive part of detoxing from mercury—removing the source that is in your mouth. Chemistry professor Dr. Dr. Dr. Dr. www.autism.com

Related: