Heart palpitations are described as feeling like your heart is racing or pounding. Palpitations can be caused by anxiety, panic disorders, overeating, pregnancy, and abnormal heart rhythms (arrhythmias). Most palpitations are not serious, however, palpitations caused by a heart condition like atrial fibrillation or Afib can be serious and require medical treatment.
WEIGHING BY DIFFERENCE (From Dr. David Chesney) Weighing by difference is the most accurate method to measure quantitatively the mass of a solid sample. This procedure involves repetitive weighings of a weighing bottle containing a quantity of solid reagent. As the solid is removed to another vessel, the mass of the weighing bottle contents decreases.
Balance vs Scale. Balance and scale are important tools used for measurement. But what is the difference between balance and scale? When a scale is used to measure the weight of an object, it makes use of compression. On the other hand balance is used to measure the mass of different objects. A balance compares the mass, or the amount of matter present in different objects. Balance. You must have seen vegetable vendors using a balance to sell vegetables and fruits.