#680 How does insulation in the home work?
How does insulation in the home work? By slowing down the movement of heat energy out of the house or into the house. The idea of insulation is to stop…
How does insulation in the home work? By slowing down the movement of heat energy out of the house or into the house. The idea of insulation is to stop…
Watch on YouTube Why does blood show up under UV light? Because it absorbs all of the light and appears completely black. When we watch crime movies, the police often…
How does a Geiger counter work? By using radiation to create an electrical signal. There are four types of radiation and they all have different mass and energy. The types…
Why is glass transparent? Glass is transparent because light photons don’t have enough energy to excite the molecules in the glass. There are two things we need to look at…
How do chemotherapy and radiotherapy work? Chemotherapy works by damaging the DNA inside the nucleus of the cancer cells and stopping them dividing. Radiotherapy works by targeting the cancer directly…
Is irradiated food safe? Irradiating food kills off all of the bacteria, gives the food a fresher taste than other preservation methods, and doesn’t make the food radioactive. Ionizing radiation…
I learned this today. High energy radiation or long exposure to radiation can damage the DNA in cells and cause radiation sickness. What is radiation? Radiation is energy that radiates…