How many people can you compress into 1 cubic centimeter of a neutron star? (astrophysics)

avg density = 5E17 kg/m^3 = 5E11 kg/cm^3
m_H = 75 kg
N = 5E11/75 = 6.67E9
The entire Earth's population!

How fast do you have to ride to a traffic light to achieve a shift from red to green? (doppler's effect/blue shift)

(1−(550/680))*300000
≈60000km/s

How many atoms, which were breathed out by A.Einstein, do you have on average in your lungs? (chemistry, physics of atmosphere)

*not solved yet*

Czech government introduced mandatory use of car lights even when the evil daystar is shining. How much gasoline is every year consumed to power these lights? What fraction is it from total gas burnt every year? (general science, enviromentalism)

*not solved yet*

How much does your watches slow down every your ride to school/work? (relativity)

*not solved yet*

If we achieve to convert entire human body into electricity, for how long can we power the world/Czech Republic? (special relativity)

m~75 kg
c=300000000 m/s
E=m*c^2 = 6.75*10^18 J = 1 875 000 000 MWh
CZ: 31 years, world >1 month
(--pc2005)

What's the weight gain your mobile phone gains when you charge its battery? (special relativity)

*not solved yet*

How much heavier is your SD card, when you fill it with photos? (quantum physics, IT)

*not solved yet*

What's overall activity of your body? Mostly C-14 and K-40. (radiochemistry)

*not solved yet*

Does your genome fit onto a DVD? (molecular biology)

Human genome ~ 3Gbp; 1bp = 2b → 750MB

*not solved yet*

*not solved yet*

*not solved yet*

*not solved yet*