182 reputation
9
bio website francisco.io
location Valencia, Spain
age 23
visits member for 2 years, 5 months
seen 17 hours ago

Learning for fun and helping others in the way. Knowledge is - or should be - free.

My website: http://francisco.io/

Projects I've put a considerable ammount of effort.

Experiments. Reinventing the wheel for learning and fun.

  • HTML preprocessor: shortening the html you have to write.
  • Matrix in jquery. Everyone should do one.

Other awards


Oct
18
comment While finding escape velocity, does human mass counts as the mass of Earth?
Well it should, we're receiving Sun radiation that plants use to combine atoms into heavier particles. Thus there's some bond energy trapped there, which means more mass, right?
Jun
7
comment Why do heavier objects fall faster in air?
I'd say denser spherical objects fall faster with air drag. Try dropping a 100g ball with R=100mm and a 10g ball with R = 1mm.
Mar
31
awarded  Commentator
Mar
31
comment Why is water clear?
Good question. I can see why glass is transparent (in our solar system), but I never wondered why water is transparent.
Mar
11
comment How can we move an object with zero velocity?
I'd say one notable exception where you can simply apply the first equation would be working against friction when the body is already in constant movement. Great answer though, in my degree we're often told the simplified version so this kind of questions pop up all the time.
Feb
24
revised Does electron in wave form have mass?
Broken link
Feb
23
suggested approved edit on Does electron in wave form have mass?
Oct
3
awarded  Critic
Oct
3
comment If I am travelling on a car at around 60 km/h, and I shine a light, does that mean that the light is travelling faster than the speed of light?
They were actually checking the velocity of it's emitter respect to the ether, which they wanted to prove. Only to find that there was no ether.
Aug
15
comment What happens, if a rocket is filled with a vacuum instead of high pressured air?
filled with vacuum sounds weird to me. Probably because in Spanish vacuum and empty are only one word, vacío, so you'd be saying in my language something like filled with emptiness.
Jul
21
awarded  Scholar
Jul
21
accepted Relation between Casimir and hydrophobic effects
Jun
21
awarded  Teacher
Jun
21
comment Does a car consume more fuel when it's raining?
That comma, sorry @PeterKravchuk
Jun
21
revised Does a car consume more fuel when it's raining?
added 1 characters in body
Jun
21
answered Does a car consume more fuel when it's raining?
Jun
1
answered What is the difference between a white object and a mirror?
May
17
comment Why doesn't light kill me?
It's not just good luck, life has evolved to adapt the environment, which includes a certain energy range fro photons. If the atmosphere shields allowed some other photons to pass, life would have evolved in some other way.
Mar
27
comment Does the sun rotate?
Note: if there was no rotation at all of the cloud of dust, then the planets wouldn't have cross-radial velocity neither, collapsing into the sun or not forming at all. The fact that you can ask the question is proof that the Sun rotates. About other stars, read answer above, it's pretty good.
Jan
25
comment Relation between Casimir and hydrophobic effects
I thought about lipid bilayers because that's what I was studying in the first place, but then thought that it would be more similar without the hydrophilic heads. Which is again really similar to the Depletion force and Casimir effect for what I could understand in the link, right? (non-native so a couple of things in the link were not clear for me)