The force is proportional to the product of the two masses and inversely proportional to the square of the distance between them. The first test of Newton's theory of gravitation between masses in the laboratory was the Cavendish experiment conducted by the British scientist Henry Cavendish in 1798. It took place 111 years after the publication of Newton's Principia and 71 years after his death.
Tea tree essential oil (Melaleuca alternifolia) is one of the most effective anti-viral oils, which makes it one of the best cold and flu remedies in aromatherapy. A warm bath with tea tree oil, taken when the first symptoms appear, can sometimes ward off the cold or at least reduce its length.
Lemon essential oil may be good for colds and congestion Photo Credit lemon image by Aleksei Volkhonsky from Fotolia.com. There are many essential oils that many claim are useful in treating the symptoms of colds and congestion.Use essential oils in a blend, with other essential oils and a carrier oil, in the bath or through inhalation.ine Essential Oil. Pine essential oil is good for relieving congestion and helping to clear the nasal passages. Pine oil is bactericidal, antiseptic and expectorant in its actions. Use pine oil to relieve sore throats and clear catarrh.