Zombies are a popular ﬁgure in pop culture/entertainment and they are usually portrayed as being brought about through an outbreak or epidemic. Consequently, we model a zombie attack, using biological assumptions based on popular zombie movies. We introduce a basic model for zombie infection, determine equilibria and their stability, and illustrate the outcome with numerical solutions. We then reﬁne the model to introduce a latent period of zombiﬁcation, whereby humans are infected, but not infectious, before becoming undead. We then modify the model to include the effects of possible quarantine or a cure. Finally, we examine the impact of regular, impulsive reductions in the number of zombies and derive conditions under which eradication can occur. We show that only quick, aggressive attacks can stave off the doomsday scenario: the collapse of society as zombies overtake us all.
With its lush greenery and temperate climate year-round, greenhouses are beneficial environments for plants, but you might consider adding an animal to the ecosystem. If you’ve ever thought a few birds would be a pleasant addition to the atmosphere of your greenhouse, go ahead and put them inside. The climate is just right for a number of different birds, and keeping them in a greenhouse will enhance more than the ambiance.
Read more via Can Birds Be Kept in a Greenhouse? | eHow
Seedbom your surrounding!!!
Seedboms are made with an explosive mix of peat free organic compost, coir and a selection of flower seeds embedded in a recycled paper shell.
Seedboms break down over time and biodegrade into the environment leaving only flowers behind.
This is simply brilliant!!
15 Incredible Uses For Lemons
The fresh, clean smell of lemon is something that we enjoy in everything from our furniture polish to our shampoo. In addition to making refreshing lemonade in the summertime, we enjoy squirting lemon juice into our iced tea and into our drinking water for its tangy flavor.
The medicinal benefits of lemons have been known for centuries. Containing vitamin C, citric acid, potassium, calcium, flavonoids, B-complex vitamins, copper, iron, phosphorus, magnesium and fiber, lemons pack quite a nutritional punch. But the sunny little fruit has a myriad of other uses, as well. Here are 15 of them you might not expect: (via 15 Incredible Uses For Lemons | Off The Grid News)