reddit's stories are created by its users

join the community, vote, and change the world.

learn more ›
what's this?

This sponsored link is an advertisement generated with our self-serve advertisement tool.

Use of this tool is open to all members of reddit.com, and for as little as $5.00 you can advertise in this area. Get started ›

This area shows new and upcoming links. Vote on links here to help them become popular, and click the forwards and backwards buttons to view more.

Enter a keyword or topic to discover new subreddits around your interests. Be specific!

You can access this tool at any time on the /subreddits/ page.

1
922
923

ChemistrySalt is used to melt snow on roads. But in the Olympics in Sochi right now they are using salt to harden snow and keep it from melting. How is this contradiction possible? (self.askscience)

submitted ago by BRBaraka

2
1260
1261

Earth SciencesQuestions about the climate change debate between Bill Nye and Marsha Blackburn? Ask our panelists here! (self.askscience)

submitted ago by AskScienceModerator[M]

3
541
542

BiologyWhy do humans and most other animals have a soft "underbelly?" Why doesn't our rib cage protect our digestive organs as well? (self.askscience)

submitted ago by Orion565

4
198
199

BiologyWhat actually is balding? (self.askscience)

submitted ago by ArkGuardian

5
78
79

EngineeringWhen car tires wear down on the road, does most of the rubber go into the atmosphere? Or is it still on the road? (self.askscience)

submitted ago by fireflycities

6
204
205

EngineeringWhy don't we shield exposed reservoirs? (self.askscience)

submitted ago by deed02392

7
5
6

EngineeringHow do metal detectors work? (self.askscience)

submitted ago by noncommunicable

8
5
6

Earth SciencesThey say part of the heat in the earth's core is due to radioactive decay. How much radioactive stuff is there in the earth now, and how much was there when the earth formed? (self.askscience)

submitted ago by Timoleonwash

9
133
134

MedicineWhat exactly happens to your skin when it is sun burnt? (self.askscience)

submitted ago by El_Nero

10
15
16

ChemistryWhy is the double Oxygen-Oxygen bond energy more than double the energy of the single O-O bond? (self.askscience)

submitted ago by TheConstipatedPepsi

11
65
66

MedicineWhat Happened to the 'Skin Gun'? (self.askscience)

submitted ago by RafeLangston

12
890
891

Engineeringwhy are images seen through night vision devices, tinted green? (self.askscience)

submitted ago by archaic_angle

13
387
388

PhysicsWhen an electrical flow is traveling down a metal wire, what is going on at the atomic level? (self.askscience)

submitted ago by Efishnt

14
4
5

MathematicsWhen is importance sampling, MCMC Metropolis Hastings, and Gibbs sampling used? (self.askscience)

submitted ago by chchan

15
9
10

NeuroscienceWhy do we see black spots if a camera flashes in our eyes or when we look at the sun? (self.askscience)

submitted ago by homepageedit

16
34
35

PsychologyIs there a scientific definition of sentience - and at what age/stage do humans achieve it? (self.askscience)

submitted ago by TheGonadWarrior

17
16
17

BiologyHow have spiders learned to build their webs next to light to attract insects so quickly since we've only had artificial outdoor lighting for about a century now? (self.askscience)

submitted ago by Mechguyver

18
12
13

AstronomyHow do astronomers age stars? (self.askscience)

submitted ago by motoman2550

19
4
5

AnthropologyIf modern humans have been around for 200,000 years, then why are there no written or oral history prior to about 8,000 years ago? (self.askscience)

submitted ago by ugotwirfed

20
320
321

MedicineHow does anti-venom work? (self.askscience)

submitted ago by shickard

21
31
32

BiologyHow do we know what kind of eyesight an animal has? (self.askscience)

submitted ago by Youjellyman2

22
5
6

PhysicsDo the sweepers in curling actually make much of a difference when they sweep? (self.askscience)

submitted ago by capncanoe

23
41
42

PhysicsDo "strange" quantum mechanical phenomenon (superposition, quantum tunneling, uncertainty, etc.) affect molecules? (self.askscience)

submitted ago by krishandop

24
10
11

ArchaeologyWhy do ancient ruins, animal bonds, etc always have to be dug up? If they're being buried over time doesn't something else have to be getting exposed? (self.askscience)

submitted ago by griffsterb

25
3
4

BiologyWhat is the biology behind feeling different temperatures? (self.askscience)

submitted ago by topiary320

view more: next ›