The free surface of a liquid drop tries to acquire a spherical shape because a drop always tends to acquire minimum surface area for least surface tension. The liquid drop tries to pull in all the liquid on the surface inside, towards its center. Note that for given volume, the surface area of the sphere is minimum.

The raindrop becomes more like the top half of a hamburger bun. Flattened on the bottom and with a curved dome top, raindrops are anything but the classic tear shape. The reason is due to their speed falling through the atmosphere. Air flow on the bottom of the water drop is greater than the airflow at the top.

Raindrops are not tear shaped when falling through the air. They are approximately round. As captured by James E. McDonald in a Journal of Meteorology article titled “The Shape and Aerodynamics of Large Raindrops”, drops can even take on hamburger shapes when they get big enough.

spherical

Answer: Two individual liquid drops have a greater surface area than that of a single drop formed after their coalescence. As the surface area decreases, energy corresponding to surface area, the surface tension energy, also decreases.

The water on the droplet surface evaporates faster than propylene glycol, and at the same time, has a higher surface tension. The reason for this chasing behavior is the difference in surface tension of the two droplets.

The air on the bottom can’t move up because it can’t overcome the surface tension. The water can’t move down because of cohesion and adhesion. Those aren’t the two MAIN factors, however. The air between your finger and the water cannot escape or flow unless a channel for airflow is created.

Were you surprised to discover that a lot more drops of water fit on a penny than you predicted? We had 27 drops of water on ours! Surface tension and cohesion is the reason you can get so many drops of water on a penny. Cohesion is the “stickiness” of like molecules to one another.

A drop or droplet is a small column of liquid, bounded completely or almost completely by free surfaces. Drops may also be formed by the condensation of a vapor or by atomization of a larger mass of solid.

Condensation is the process of water vapor turning back into liquid water, with the best example being those big, fluffy clouds floating over your head. And when the water droplets in clouds combine, they become heavy enough to form raindrops to rain down onto your head.

After condensation the water vapour or the moisture in the atmosphere takes one of the following forms — dew, frost, fog and clouds.

Rain drops aren’t always the same size. You can have fine mist like rain with tiny drops or much larger drops during heavy thunderstorms. Depends on several atmospheric conditions including wind speed, temperatures etc. An eye dropper is likely to produce drops of the same size.

One drop of water in volume and capacity sense converted to one-centimeter diameter spheres equals precisely to 0.095 ∅ 1 cm.

Clouds are tiny droplets of liquid water or small ice crystals. Water at the surface of the ocean, rivers, and lakes can become water vapor and move into the atmosphere with a little added energy from the Sun through a process called evaporation.

water hexamer

Sweat Droplets emoji is the picture of two or three blue 💦 Water droplets, which might be used in a huge variety of meanings which are defined by emoji combinations. For example, together with smileys like 😲 Astonished Face Emoji, it may symbolize sweating, crying, or for example, spitting.

A typical cloud droplet is 20 microns in diameter, a large aerosol particle is 100 microns in diameter, a small aerosol particle is 1 micron in diameter, and a typical raindrop is 2 millimeters (2000 microns) in diameter.

Rain forms in clouds as water vapor gloms onto dust or other tiny particles, gradually building up. The turbulent air inside a storm cloud can aide the process. It was presumed that this same process of collision kept up on the fall to the ground, resulting in some drops being bigger or smaller than others.

When it’s raining, it may seem that every raindrop is the same–same size, same basic shape, same wetness. But if you could compare and measure raindrops, you’d find that they’re not all the same size or shape. In fact, raindrops vary from one to six millimeters in diameter and come in all sorts of shapes.

Raindrops are very much larger than cloud drops. A typical raindrop might have a diameter of 1–2 mm, while a typical cloud drop diameter is of the order of 0.01–0.02 mm.