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Want to use a design that’s subtler than a big red heart? Try the understated “Happy Valentine’s Day” templates for an easy-on-the eyes look and calls-to-action that pop.

Valentine's Day is around the corner, and like many holidays it's an occasion for businesses to make more sales via email marketing. We know you're always looking for ways to build your list and deliver relevant, valuable messages, so we thought we'd play Cupid and help you and your customers get together Just in time for the upcoming holiday, we've rolled out new HTML email templates and matching web form ones, themed for February 14th.

There are a lot of reasons why you might want to make your own shampoo from scratch. The big two probably are wanting to avoid the chemicals in commercial shampoos and just simply wanting to make shampoo yourself. Back in ye olden days, shampoo was soap, except with additional moisturizers so that it didn't strip the natural oils from your scalp and hair. Although a shampoo can be solid, it is easier to use if there is enough water to make a gel or liquid. Shampoos tend to be acidic because if the pH gets too high (alkaline) the sulfur bridges in the hair keratin can break, damaging your hair. This recipe for making your own gentle shampoo is chemically a liquid soap, except vegetable-based (many soaps use animal fat) and with alcohol and glycerine added during the process. Make it in a well-ventilated room or outdoors and be sure to read all of the safety precautions on the ingredients. Shampoo Ingredients 2 lb 10 oz olive oil 1 lb 7 oz of solid-type vegetable shortening...

February 8th is Dmitri Mendeleev's birthday. Most people associate Mendeleev the first accepted periodic table of the elements. His table ordered the elements by increasing atomic weight where columns of elements had similar chemical properties and is the immediate forerunner of the modern periodic table. Mendeleev was also the man responsible for making Russia "metric". As Director of Russia's Bureau of Weights and Measures, he was instrumental in bringing the metric system to Russia. In his personal life, he was famous for his "grooming". Mendeleev was widely known for his long hair and wild beard. He would only cut his hair or trim his beard once a year. He had one minor scandal where he was labeled a bigamist for a legal technicality for not waiting the required seven years after a divorce before marrying his second wife. Find more about Mendeleev and what else occurred on this day in science history.

You breathe oxygen, yet air is mostly nitrogen. You need nitrogen to live and encounter it in the foods you eat and in many common chemicals. Here are some quick facts about this element. You can find detailed information about nitrogen on the nitrogen facts page. Nitrogen is odorless, tasteless, and colorles Nitrogen gas (N2) makes up 78.1% of the volume of the Earth's air. Nitrogen is a nonmetal. Nitrogen gas is relatively inert, but soil bacteria can 'fix' nitrogen into a form that plants and animals can use to make amino acids and proteins. The French chemist Antoine Laurent Lavoisier named nitrogen azote, meaning without life. Nitrogen was sometimes referred to as 'burnt' or 'dephlogisticated' air, since air that no longer contains oxygen is almost all nitrogen. The other gases in air are present in much lower concentrations. Nitrogen compounds are found in foods, fertilizers, poisons, and explosives. Your body is 3% nitrogen by weight. Ni...

Here's a look at some types of dates that might be perfect if your sweetie is a scientist or is interested in science. Dinner and movie is still a good plan, especially with the right movie, but I here are some additional dating ideas. Science Date Ideas Sharing an ice cream cone is always romantic. For science-types, try making the ice cream using liquid nitrogen! Nicolas George

Question: Is There Really a Chemistry of Love? Answer: I don't think there are any magic love potions that you can use to make someone fall in love, but chemistry does play an important role in how a relationship progresses. First, there's attraction. Nonverbal communication plays a big part in initial attraction and some of this communication may involve pheromones, a form of chemical communication. Did you know that raw lust is characterized by high levels of testosterone? The sweaty palms and pounding heart of infatuation are caused by higher than normal levels of norepinepherine. Meanwhile, the 'high' of being in love is due to a rush of phenylethylamine and dopamine. All is not lost once the honeymoon is over. Lasting love confers chemical benefits in the form of stabilized production of serotonin and oxytocin. Can infidelity be blamed on chemistry? Perhaps in part. Researchers have found that suppression of vasopressin can cause males (voles, anyway) to abandon...