Concrete
They both weigh the same, one pound. The difference lies in the volume or amount of feathers and concrete needed to reach that weight. Feathers are much less dense than concrete, so a pound of feathers will take up much more space than a pound of concrete.
One kilogram of brick weighs as much as one kilogram of feathers. (I do not know what a "chesse of feathers" is...)
1 lb of sugar weighs exactly the same as 1lb of feathers. a pound is a pound is a pound.
An ounce of Gold Weighs more. An ounce of gold weighs 2.7539537 grams more, than an ounce of feathers. Gold is weighed in Troy ounces and feathers are weighed in standard ounces. There are 31.1034768 grams in 1 Troy ounce and there are 28.3495231 grams in 1 standard ounce.
Iron weighs more than feathers. Iron is a dense, heavy metal, while feathers are light and fluffy. However, if comparing the same volume of iron and feathers, they would weigh the same due to the concept of density.
a brick
They weigh the same.
I would need more details to answer but if your asking about the common question, "What weighs more, an ounce of feathers, or an ounce of rocks?" then they are the same.
they are equal dummy
In normal conditions (in Earth's atmosphere, at the same elevation) a ton of apples weighs more than a ton of feathers, because the density of an apple is greater than density of a feather (feathers are mostly hollow inside). Therefore, the Earth's atmosphere has a greater "floating" effect on the feathers, making them weigh less than apples. People who give "both weigh the same" answer ignore the fact that a ton (1000 kg) is the measure of mass, not weight. Let me ask: what weighs more, a ton of rocks or a ton of helium-filled balloons? Guess! ;) Consider also that if you weigh the two commodities in a vacuum then there is no buoyancy factor.
Each weighs a pound so neither weights more than the other..
Wet concrete weighs about 4,000 per cubic yard. Some types of concrete weigh more or less. Lightweight concrete weighs about 1,000 pounds less.