These sites help students visualize what large numbers, such as one million, look like. There are online representations of a million, plus hands-on activities. Find out your age in millions of seconds.
Lemon has also been found beneficial as a home remedy for knee pain caused by arthritis. The citric acid found in lemon works as a solvent for uric acid crystals, which is the cause of some types of arthritis. Cut one or two lemons into small pieces. Tie the pieces in a cotton cloth and dip it in warm sesame oil.
Treatment of knee pain depends on the cause of the knee pain. If you have been working on your knees all day then potentially rest and anti-inflammatories such as ibuprofen can help. If the cause is trauma and there is possible joint damage then you should seek medical attention.