A view of human skin at 40-times magnification.
Image by Irmgard Fischer, University of Vienna.
The Approximate pH Values of Everyday Solutions
Flipping through the chemistry tag on tumblr is downright depressing. A good deal of it is young students (secondary school or starting university) freaking out about how much they hate chemistry and how they feel like they’re going to fail it hardcore or are just trying to get it over with, and…
It’s more depressing when you see people in real life doing it. A huge part of the problem is that they expect to fail, so don’t put in much effort into studying at all.
Venus Sea Fan (Gorgonia flabellum)
The Venus sea fan is a delicate-looking colonial coral forming a fan shaped lattice-work of branches in a single plane. The coral grows from a small base and has several main branches, a larger number of side branches and a network of small branchlets. The colour is white, yellowish or pale lavender. The fan is orientated perpendicular to the incoming waves and can grow to a height of 1.5 m.
The skeleton of the Venus sea fan is composed of calcite and a collagen-like substance. Embedded in this are the coral polyps, each of which is a filter feeder and extends its eight tentacles to catch plankton drifting past with the current. The tissues contain a symbiotic dinoflagellate algae Symbiodinium spp. which is photosynthetic and uses sunlight to create organic carbon compounds which are then available to the host coral…
(read more: Wikipedia) (image: Fernando Herranz Martín)
United States law allows makers of cleaning products to use almost any ingredient they want to, including known carcinogens and substances that can harm fetal and infant development. According to the well-respected consumer watchdog group, Environmental Working Group (EWG), government agencies and independent research institutions do not adequately evaluate the safety of numerous substances found in cleaning products. Although government scientific and regulatory agencies are starting to focus somewhat on chemicals suspected of causing cancer, they still lack in paying attention to substances that may be toxic to the brain and nervous system, the hormone system and other organs. […]
Of the 271 general purpose laundry detergents [the Environmental Working Group] evaluated, only seven scored a rating of A [on a scale of A to F]. These are them:
- Seventh Generation Natural Powder Laundry Detergent, Real Citrus & Wild Lavender
- Dr. Bronner’s 18-in-1 Hemp Pure-Castile Soap, Peppermint
- Dr. Bronner’s 18-in-1 Hemp Pure-Castile Soap Baby Mild
- Seventh Generation Natural Powder Laundry Detergent, White Flower & Bergamot Citrus
- Martha Stewart Clean Laundry Detergent
- Green Shield Organic Laundry Detergent, Free & Clear
- Seventh Generation Natural Laundry Detergent Powder, Free & Clear
Reblogging because I love anything free of sulfates that goes on skin.
Bacillus cereus in starch and flooded with Iodine.
Bark #1 (Le Procrastinateur, 2012).