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Do food crops contain the same level of nutrients as it used to?

Submitted by Fit-Owl-7188 t3_10yfbgx on February 10, 2023 at 3:43 AM

No comments

Does having autoimmune disorder (atopic disease in my mind, but also otherwise) lead to an increased risk of immune cell cancer?

Submitted by MoBuckeye t3_10wp4sh on February 8, 2023 at 6:08 AM

22 comments

246

Why do some allergies get worse over time and some better? And how does allergen desensitivity work without making the reaction worse?

Submitted by DontDoDrugs316 t3_10t4td8 on February 4, 2023 at 4:20 AM

50 comments

437

If the plutonium core of a nuclear warhead is so ready to go critical, how is it safely manipulated during assembly?

Submitted by TheFunnyShah t3_10xnwui on February 9, 2023 at 6:45 AM

No comments

What evidence is there for non-physical attributes being passed down from ancestors to their descendants through DNA?

Submitted by PeanutSalsa t3_10w5xl5 on February 7, 2023 at 4:22 PM

12 comments

(Virology) Has SARS-CoV-2 outcompeted all the other coronaviruses which have been called the ‘common cold’?

Submitted by jsgui t3_10va8f7 on February 6, 2023 at 4:02 PM

163 comments

2,345

How does shingles cause a rash when the infection is located all the way in the dorsal ganglia?

Submitted by menooby t3_10typeg on February 5, 2023 at 2:35 AM

10 comments

Why do rings around planets like Saturn form as rings, as in why do they have a uniform shape, with all the debris rotating on the same axis?

Submitted by Low_Advertising_473 t3_10wnlcn on February 8, 2023 at 4:45 AM

No comments

When does the body store fat?

Submitted by fappie6 t3_10u9ozz on February 5, 2023 at 10:40 AM

12 comments

Back in the late 90s, I remember hearing that scientists “cloned a sheep”. What actually happened with the cloning, and what advancements have been made as a result of that?

Submitted by foxmag86 t3_10s85uu on February 3, 2023 at 2:11 AM

106 comments

913

Is the yearly cycle of varying daylight durations from day to day throughout time consistent? Is the cycle we have today the same as in the 17th century?

Submitted by meellowstar t3_10u9kid on February 5, 2023 at 10:31 AM

45 comments

140

How do animals get the necessary Vitamin D?

Submitted by b_b___7 t3_10v4n8b on February 6, 2023 at 11:47 AM

8 comments

Would silver drown in mercury or float on it?

Submitted by slimebor t3_10u9s31 on February 5, 2023 at 10:46 AM

12 comments

A medical isotope made from nuclear weapons waste (Tc-99m) has a six-hour half-life. How do hospitals keep it in stock?

Submitted by Gwaiian t3_10rz10c on February 2, 2023 at 7:52 PM

70 comments

107

Why are green and red laser pointers so cheap and available, but yellow ones not so much?

Submitted by SurprisedPotato t3_10utol4 on February 6, 2023 at 1:22 AM

41 comments

249

Understanding that deuterium and tritium are simply isotopes of hydrogen, is there an equivalent periodic table that shows all known elements and their isotopes?

Submitted by [deleted] t3_10uemz6 on February 5, 2023 at 3:07 PM

15 comments

Is there a term for lake bottoms that "hour glass" (temporarily becomes wider following a "shelf" as the depth increases ) , how do bathymetric maps depict this, and does this have a common affect on turbidity, thermoclines, or other characters?

Submitted by Irisgrower2 t3_10ujc84 on February 5, 2023 at 6:21 PM

15 comments

Does gas under high pressure conduct heat better than gas under atmospheric pressure?

Submitted by TetheredArrow0712 t3_10uw1pu on February 6, 2023 at 3:12 AM

13 comments

Have there been any ophiocordyceps fungi like (or any type of) creatures found infecting animals in bodies of water/oceans?

Submitted by Worldsahellscape19 t3_10t5dr2 on February 4, 2023 at 4:52 AM

7 comments

110

Does the central part of my vision see in a different frame rate than the outer part?

Submitted by Calvinkelly t3_10suc0k on February 3, 2023 at 8:28 PM

14 comments

There are fruits and vegetables which apparently co-evolved with animals, are there any fruits or vegetables which specifically target humans in a similar way?

Submitted by euxneks t3_10unxew on February 5, 2023 at 9:22 PM

No comments

What causes the onset of puberty specifically?

Submitted by Voomit t3_10t809m on February 4, 2023 at 7:27 AM

37 comments

244

(Virology) Why are some viruses "permanent"? Why cant the immune system track down every last genetic trace and destroy it in the body?

Submitted by Melodic_Cantaloupe88 t3_10ufc6d on February 5, 2023 at 3:37 PM

No comments

Ask Anything Wednesday - Physics, Astronomy, Earth and Planetary Science

Submitted by AutoModerator t3_10qwrk9 on February 1, 2023 at 3:00 PM

143 comments

227

why you DON'T develop resistance to some medications?

Submitted by sadra-the-legend t3_10te3a8 on February 4, 2023 at 11:15 AM

6 comments