a hole
Helium is a gas that is weightless, odourless, and would make a barrel lighter.
No. It doesn't do anything to lighten the skin. I use honey everyday and would nearly invisible by now if it did.
A standard barrel (Drum) is 55 gallons, therefore if the barrel is full of water it would weigh 440 pounds. An oil barrel is smaller and holds only 40 gallons and weigh apx 280 lbs as petroleum is lighter than water
No. An example of unicellular organisms would be bacteria. Earthworms are multicellular and contain organs and organ systems. Unicellular organisms are typically invisible to the naked eye except when in large groups (such as yeast).
You have to add AIR.
If I would be invisible, I will do what ever I want.
Nothing at all, I would just keep on going. A naked person is a naked person.
If I had the power to become invisible, my name would be Shadowcloak.
Bigger barrels will cost more and weight more but they have a bigger barrel so it is easier to hit the ball. Small barrels are cheaper and much lighter but small barrel= harder to hit the ball. Another answer All depends on players preference. Big barrel bats are generally cut from lighter, dryer wood billets which are weaker and have less moisture density. Thinner barrel bats will be cut from higher density, heavier weighted billets which would offer harder, higher performing bats.
it depends if the workers are hot
It might not be visible to the naked human eye, but when it wasn't traveling at the speed of light it would be visible. So no, it would not be literally invisible. Traveling faster than the speed of light would merely provide the illusion of invisiblity. If you were trying to detect it using visible light reflected from the rear as it moved away from you, yes, it would be invisible. But that condition is impossible, since faster-than-light travel is impossible. If it were possible, then light wouldn't be light, and time wouldn't be time and, very likely, the Universe simply would not be.
Generally, once an egg is released, if it is not fertilized, it will return or absorb back into the uterine lining. It might come out through your period, but it would be microscopic, completely invisible to the naked eye...you would never know or see it.