Grind

Stephen Rosen of East Hampton, an astrophysicist and expert on cosmic radiation, will give a talk about the continuing significance of Albert Einstein's theory of general relativity at the Cutchogue New Suffolk Library on Friday at 6 p.m. 

The annual Shoe-Inn warehouse sale will start Tuesday and run daily through Monday, and again from Wednesday, Aug. 21, through Aug. 25, from 9 a.m. to 5:45 p.m. at the American Legion post in Amagansett.

New York State Assemblyman Fred W. Thiele Jr. is hosting a food drive for the month of August, teaming up with Island Harvest, a hunger-relief organization, to collect food for those in need. Items collected on the South Fork will go to the Bridgehampton and Southampton food pantries.

Music for Montauk will kick off its summer series of outdoor concerts Thursday with “Brahms Gypsy Dances,” passionate quartet songs, accompanied by piano and strings, under a tent at Third House at Montauk County Park.

On Aug. 17 the selection will be Bach’s most festive Cantata No. 51, featuring strings, trumpet, keyboard, and vocals, with the operatic star Rachelle Durkin and trumpeter C.J. Camerieri. Both concerts, at 6:30 p.m., are free and family friendly. Concertgoers are encouraged to take picnics, chairs, and blankets.

Sherrilyn Ifill, the president and director-counsel of the N.A.A.C.P. Legal Defense and Educational Fund, will discuss matters of race and equality on the South Fork at 6 p.m. on Wednesday as part of the Thinking Forward Lecture Series at Guild Hall.

The free talk is in partnership with the Bridgehampton Child Care and Recreational Center.

The South Fork Natural History Museum in Bridgehampton will host a free wildlife rehabilitation basics course at 10:30 a.m. on Sunday.

The Springs Improvement Society’s 87th annual Fisherman’s Fair will take place on Saturday from 10 a.m. to 3 p.m. on the Ashawagh Hall grounds, with a children’s area for games and crafts, food and craft vendors, a restaurant raffle, live music, and, inside the hall, the Artists of the Springs invitational exhibition, which will be on view through Sunday.     

East Hampton High School's class of 1969 will hold 50th reunion activities during the weekend of Oct. 4 to 6, and has invited members of that graduating class to participate.

A harmful blue-green algal, or cyanobacteria, bloom continues to affect Fort Pond, according Concerned Citizens of Montauk's water testing results for the week of July 29. While toxin levels remain low, C.C.O.M. has again urged people to avoid contact with the water until further notice. 

Those who do come in contact with the water are advised to rinse immediately with clean water and seek medical attention if they experience nausea, vomiting, or diarrhea; skin, eye, or throat irritation, or allergic reactions or breathing difficulties after contact. 

The family of Erika Bueno, an East Hampton High School student who died Monday, is raising money to pay for her funeral, and the school has provided counselors for peers who are affected by her death.

Throughout August, Bay Street is offering a variety of one-day theater classes every day of the week dedicated to nurturing teenage talent.

The 42nd Infantry Division Band of the New York Army National Guard will perform at the Montauk Lighthouse on Monday at 2 p.m. The 90-minute show will feature a 28-piece band performing jazz, rock, and patriotic songs.

The Ocean Institute's series of free lectures at the Lighthouse with speakers from the Stony Brook University School of Marine and Atmospheric Sciences continues today at 2 p.m. Teresa Schwemmer will discuss "Ocean Acidification: What Does It Mean for Long Island?"