The British thermal unit (BTU or Btu) is a traditional unit of work equal to about 1055 joules. It is the amount of work needed to raise the temperature of one pound of water by one degree Fahrenheit (Physical analogue: one four-inch wooden kitchen match consumed completely generates approximately 1 BTU).
Blisters on feet can be caused by numerous things, including: 1  Forceful rubbing or friction on the foot. 2  Bone spurs or exostoses. 3  Burn. Freezing.  Chemical 1  exposure. Infection.  Allergic 1  reaction. Pinching  skin. Medical 1  condition. Foot perspiration.  Fungal infections such as Athletes foot.
Foot cramps have many causes. Some of the most common causes for foot cramps are: Stress or fatigue in the foot â An overworked foot is often susceptible to foot cramps. Poor circulation â Foot cramp is caused by lack of oxygen being carried to the foot. Lack of potassium â This important mineral, found in salt, helps regulate body chemistry and keep you foot cramp free. Dehydration â Lack of water in the muscles contribute to foot cramps. Changing hormone levels â Foot cramps may occur while muscle tissue adjusts to these changes. Pinched nerves â Caused when the electrical impulse from the brain cannot reach the muscle, this can cause foot cramps, numbness and other symptoms.