QiaoJun-PHYS273

PHYS 273 - Winter 2020

[QiaoJun-PHYS273 @QPhys273]

Besides light bulbs, I just realized that my washer has the energy star certification. How about you? Do any of your home appliance has the energy star certification? #lesson9

[QiaoJun-PHYS273 @QPhys273]

@Vivi_Phys273 Very visual comparison! Thanks for sharing

[QiaoJun-PHYS273 @QPhys273]

@Taieb273 Indeed! It is very pretty! Thank you for sharing

[QiaoJun-PHYS273 @QPhys273]

Overall CO, NO and SO emissions in Canada are decreasing. #lesson10

[QiaoJun-PHYS273 @QPhys273]

Transportation is the leading cause in CO and NO emission in Canada. #lesson10

[QiaoJun-PHYS273 @QPhys273]

The mixture of a nitrogen-oxygen at 1100 degree Celsius will form NO. If the cooling process is slow, it will decompose back into N2 and O2. #lesson10

[QiaoJun-PHYS273 @QPhys273]

@WilliamPHYS273 Hope in the near future, with the technology we can use nuclear fusion as a way to produce energy.

[QiaoJun-PHYS273 @QPhys273]

There are three forms of heat transfers: conduction, convection and radiation. #lessonn9

[QiaoJun-PHYS273 @QPhys273]

If we have a better insulation, it would cost us less in terms of energy and money to heat our houses. #lesson9

[QiaoJun-PHYS273 @QPhys273]

In Canada, 63% of the residential energy use is from space heating. #lesson9

[QiaoJun-PHYS273 @QPhys273]

Materials with a higher R-value are better for insulation because they are more capable of keeping thermal energy inside the house. #lesson9

[QiaoJun-PHYS273 @QPhys273]

@WilliamPHYS273 That's a very complete representation of the cycle!

[QiaoJun-PHYS273 @QPhys273]

@AlexandraPPHYS1 Totally agree with you!

[QiaoJun-PHYS273 @QPhys273]

Power plants which function with dams generate more electricity than those with run of river. #lesson7

[QiaoJun-PHYS273 @QPhys273]

@Phys273S Indeed, it is safer than most energy sources and it doesn't emit CO2

[QiaoJun-PHYS273 @QPhys273]

@Phys273S This is incredible! I am sure the number has increased

[QiaoJun-PHYS273 @QPhys273]

@Phys273S Wow! So beautiful! This place is a must to go!

[QiaoJun-PHYS273 @QPhys273]

@SunnyYa66957983 Can't imagine how much work it takes to get all assembled

[QiaoJun-PHYS273 @QPhys273]

Here is a picture of a wind turbine blade that I took when I went to Gaspesie. #lesson7

[QiaoJun-PHYS273 @QPhys273]

@Maurice38465143 Looking forward to an increase in tidal electricity!

[QiaoJun-PHYS273 @QPhys273]

@Phys273S Me neither, I wasn't aware of that before

[QiaoJun-PHYS273 @QPhys273]

The mass of Uranium-236 is higher than all the masses of the final products added up (Barium, Krypton and neutrons). This missing mass is converted into useful energy. #lesson8