According to Woodford, “Calorie values on nutritional labels estimate the energy contained in the food within the package.” Scientists use a calorimeter to determine how much energy a certain food has.
There is a type of calorimeter that burns up the food within a device surrounded by water. This method helps scientists determine how much energy a certain food has by measuring how much the temperature of water changed in the process.
At least, in theory, this is possible. And that’s because electric drills generate heat due to friction, leaving the drill bit, the motor, and the wall to get hot. In order to heat one kilogram of wood at just 1°C you need about 2000 joules of energy. The usual power drill uses about 740 watts of electricity and 750 joules of energy, therefore, Woodford stated in his book that a power drill could set a wooden wall on fire in just four minutes in a 68°F room.
Did you know that tall office buildings are ever-so-slightly taller at night after all the employees go home? That happens because a 1300-foot-tall skyscraper usually has more than 50,000 employees which makes it shrink about 1.5 millimeters under their weight.
CLICK HERE to discover the 18 Science Facts You Probably Never Learned in School.
What can we say now? We are all tired of reading about SARS-CoV-2. We are sick of hearing about this…
I am sure that almost everyone knows about climate change. We have heard about it on the news, on the…
Covid-19 doesn't seem to want to leave. Another variant of this virus has emerged, and with it comes a lot…
The Delta variant is not the main subject on the news anymore. That is because it was dethroned by another…
Money, money, money! We all need it, and we are all thinking of different ways we can make more of…
Miscalculating or omitting details or numbers in the lab can lead to serious damage for a research group. Add the…