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.
Around one in five people in the UK have athleteâs foot. It's caused by a fungus that grows in warm, damp areas of skin, such as between your toes. The fungal infection makes your skin itchy, flaky and red. It also causes white cracks to appear, especially between your toes and on the side of your foot.Occasionally it causes blisters.round one in five people in the UK have athleteâs foot. It's caused by a fungus that grows in warm, damp areas of skin, such as between your toes. The fungal infection makes your skin itchy, flaky and red. It also causes white cracks to appear, especially between your toes and on the side of your foot.